I had this problem with my last game... I would crash in or around Cheydinhal about every 3-5 minutes. This happened in both interiors and the exterior area (I'm using OBC). I reinstalled Oblivion and all my mods, cleaned most of them, and upgraded to OBSE 18, but the problem is still there, which means it's most likely one of my mods. I tried deactivating mods a few at a time, but no luck. One thing I did notice: If I took Ruins of Tarnesia out, I'd get the error message on crashing; if it's in, it crashes straight to the desktop. Here's my full load order; does anyone have any idea what's causing this?

Active Mod Files:00  Oblivion.esm01  EnhancedWeather.esm  [Version 1.3]02  Francesco's Leveled Creatures-Items Mod.esm03  Cobl Main.esm  [Version 1.71]04  Oscuro's_Oblivion_Overhaul.esm  [Version 1.33]05  Mart's Monster Mod.esm  [Version 3.6beta3]06  Enhanced Daedric Invasion.esm07  TamrielTravellers.esm  [Version 1.39c]08  FCOM_Convergence.esm  [Version 0.9.8]09  Better Cities Resources.esm0A  NNWAEMaster.esm0B  CustomSpellIcons.esm++  TweakedGenericFaces.esp0C  Unofficial Oblivion Patch.esp  [Version 3.2.0]0D  DLCShiveringIsles.esp0E  Unofficial Shivering Isles Patch.esp  [Version 1.4.0]0F  Better Cities .esp10  Francesco's Optional Chance of Stronger Bosses.esp11  Francesco's Optional Chance of Stronger Enemies.esp12  Francesco's Optional Leveled Quests.esp++  FCOM_Francescos.esp  [Version 0.9.8]13  EnhancedWeather.esp  [Version 1.3]++  EnhancedWeather - Darker Nights, 50.esp  [Version Final]++  Advanced_Water_Modification-2734.esp++  Symphony of Violence.esp14  Echo_ChapelChant.esp15  MIS Low Wind.esp16  MIS New Sounds Optional Part.esp17  PCSoundAnnah.esp  [Version 2.6]18  WindowLightingSystem.esp19  1DeadlyShadows.esp1A  AliveWaters.esp1B  Book Jackets Oblivion.esp1C  CNRP Bruma4OOO.esp  [Version 0.2]1D  CNRP Chorrol4OOO.esp  [Version 1.1]1E  CNRP Cheydinhal4OOO.esp  [Version 1.0]1F  CNRP FightersGuild4OOO.esp  [Version 1.0]20  CNRP DB for OOO.esp  [Version 1.0]21  diversegrasses.esp22  DS Time Manager.esp  [Version 1.0]++  Item interchange - Extraction.esp  [Version 0.74]++  Less Creepy Guild Porters.esp23  Musical Immersion 1.0.esp24  QZ Easy Menus.esp25  RealitySpectre'sBetterPotions.esp26  ReneerCreatureMod.esp27  Reznod_Mannequin.esp28  Enhanced Economy.esp  [Version 3.3.4]29  Choices and Consequences.esp  [Version 2.0]2A  C&C - The Blackwood Company.esp2B  sr_super_hotkeys.esp2C  Nicoroshi Creations DW Light.esp2D  StealthArmor.esp2E  mz_Shields.esp2F  Thieves Arsenal.esp30  Oblivion WarCry EV.esp31  FCOM_WarCry.esp  [Version 0.9.8]32  Oscuro's_Oblivion_Overhaul.esp  [Version 1.33b]33  OOO-LightOfDawnFlamesWhenDrawnOBSE_1handed.esp34  Choices and Consequences - OOO.esp  [Version 2.0]35  OBSE-Storms & Sound.esp36  FCOM_Convergence.esp  [Version 0.9.8]++  FCOM_SpawnRatesReduced.esp  [Version 0.9.8]++  Mart's Monster Mod - Looting NPCs & Creatures.esp  [Version 3.6Beta3]37  Mart's Monster Mod - No Carrion Rats.esp  [Version 3.6Beta3]++  Mart's Monster Mod - No Blood.esp  [Version 3.6Beta3]++  Mart's Monster Mod - No Bone Loot.esp  [Version 3.6beta3]++  Mart's Monster Mod - No Undead Rise.esp  [Version 3.6Beta3]++  Mart's Monster Mod - No Slimes.esp  [Version 3.6beta3]++  Mart's Monster Mod - No Lanterns.esp  [Version 3.6Beta3]38  Mart's Monster Mod - Extra Wounding.esp  [Version 3.6Beta3]++  FCOM_FriendlierFactions.esp  [Version 0.9.8]++  TamrielTravellerAdvscript.esp  [Version 1.39c]39  TamrielTravellers4OOO.esp  [Version 1.39c]++  TamrielTravellersItemsnpc.esp  [Version 1.39c]++  FCOM_TamrielTravelers.esp  [Version 0.9.8]3A  TIE In.esp  [Version 1.07]3B  TIE In - FCOM Convergence.esp  [Version 1.07]3C  TIE In - Game Settings.esp  [Version 1.07]++  TIE In - Sounds.esp  [Version 1.07]3D  Ayelid Wells.esp3E  SSEE-OOO.esp++  MOBS SI.esp  [Version 1.2.2a]3F  C&C - The Blackwood Company - OOO.esp40  Ivellon.esp  [Version 1.5]41  Bandit Hideouts.esp42  Bottomless Cavern.esp43  Brendi.esp44  CDEP_FanaCeya.esp45  CDEP-UnderpallCave.esp46  Dirtier Waterfront.esp47  FortDragonShirev1.esp48  Fort Ferrion.esp49  Gelden_Halls.esp4A  JQ-AssassinQuest.esp4B  LostSwordOfTheAylied.esp4C  NNWAREAyleidDungeons_Series1EV.esp  [Version 2.1]4D  NNWARE01EV-Sercen.esp4E  NNWARE02EV-Trumbe.esp4F  NNWARE03EV-Piukanda.esp50  NNWARE04EV-Veyond.esp51  NNWARE05EV-Bawn.esp52  Pirate Cove Cavern.esp53  PTArtifacts.esp54  Return Of Shadows.esp  [Version 1.03]55  Ruins of Tarnesia.esp  [Version 1.0]56  Better Dark Brotherhood Sanctuary for Cobl & OBSE.esp57  Sylar_INNMergedCyrodillInnsRevised.esp58  sunk ships.esp59  The Arcane Storage.esp5A  The Ayleid Steps.esp  [Version 3.2]5B  Treasure Maps Blood Ransom.esp5C  Treasure Maps_Boethia's Burden.esp5D  VHBloodlines 1.2.esp  [Version 1.4]5E  DLCBattlehornCastle.esp5F  BattlehornCastleEnhanced.esp60  AFK_Weye.esp61  Enhanced Daedric Invasion.esp++  FCOM_EnhancedDaedricInvasion.esp  [Version 0.9.8]62  ElsweyrAnequina.esp63  Reaper's Esmeralda's Desert Manor.esp64  ElsweyrC&CBlackwoodPatch.esp65  ElsweyrAnequinaFemaleBody.esp66  road+bridges.esp  [Version 4.5.3]67  West Roads.esp68  Faregyl.esp  [Version 1.0.10]69  Faregyl+Anequina Patch.esp6A  xulFallenleafEverglade.esp6B  Anequina-Fallenleaf-Patch.esp6C  xulBeachesOfCyrodiilLostCoast.esp  [Version 1.6.3]6D  xulBravilBarrowfields.esp  [Version 1.3.2]6E  xulLushWoodlands.esp  [Version 1.3]6F  xulAncientYews.esp70  xulBrenaRiverRavine.esp  [Version 1.0.2]71  xulAspenWood.esp  [Version 1.0.1]72  The Ruins of Miscarcand.esp73  Oblivion Gate Map Marker Remover.esp  [Version 1.1.0]74  300 Arcane University.esp75  Open Better Cities FULL.esp76  OBCBravil-Barrowfields patch.esp77  JQ-Fighters_Guild_United.esp++  FCOM_FighterGUnited.esp78  Harvest [Flora].esp  [Version 3.0.0]79  AutoBookPlacer.esp++  DeadlierDarkBrotherHood.esp7A  Leviathan Soulgems.esp++  more books teach.esp7B  P1DkeyChain.esp  [Version 5.00]7C  RenCorpseMod.esp7D  Enhanced Vegetation [125%].esp++  SigilStonesUnlevelled - Adjusted.esp7E  StarX Vampire Deaths.esp7F  Toggleable Quantity Prompt.esp  [Version 3.1.1]80  Shadow Ranger.esp  [Version 2.9]81  Quest Award Leveller.esp  [Version 2.0.1]82  StartChoices.esp83  LessHealthfulRest.esp84  SM Encumbrance and Fatigue.esp  [Version 2.1b]85  RealisticForceMedium.esp86  RealisticMagicForceMedium.esp87  StarX Vanilla Vampires Revised.esp88  StarX VVR_OOO Patch.esp89  ArcaneArchery.esp8A  attack and hide medium v2.1.esp8B  RshAlchemy.esp8C  ZumbsLockpickingMod - OBSE.esp8D  RenGuardOverhaul.esp8E  Smarter Mercantile Leveling - Multi.esp8F  RealisticLeveling.esp++  Level_Rates_Modified_x5.esp90  immersive_caves_auto.esp++  Item interchange - Placement for FCOM.esp  [Version 0.74]91  Let There Be Darkness - Cyrodiil + SI.esp92  bgBalancingEVCore.esp  [Version 10.52EV-D]93  bgMagicEV.esp  [Version 1.7EV]++  bgMagicItemSigil.esp  [Version 1.68EV]++  bgMagicEVStartspells.esp  [Version 1.68EV]++  bgMagicEVAddEnVar.esp  [Version 1.68EV]94  bgMagicEVPaperChase.esp  [Version 1.68EV]95  bgMagicAlchemy.esp  [Version 1.57]++  bgBalancingEVOptionalFCOMAdditions.esp  [Version 10.]96  bgBalancingEVLAMEAddition.esp  [Version 10.51EV-D]++  bgBalancingEVLAMEGlue.esp  [Version 10.0EV-D1.62EV]97  bgBalancingEVOptionalNPCDiversityLAME.esp  [Version 10.5EV-D]98  bgIntegrationEV.esp  [Version 0.962]99  bgIntegrationEV - Alternative NPC Faces by LazyMonk.esp  [Version 0.95]9A  OC+Integration Patch.esp  [Version 1.0]9B  Better Cities IC Arboretum.esp9C  Better Cities IC Arena.esp9D  Better Cities IC Elven Gardens.esp9E  Better Cities IC Green Emperor Way.esp9F  Better Cities IC Market.espA0  Better Cities IC Prison.espA1  Better Cities IC Talos Plaza.espA2  Better Cities IC Temple.espA3  Zero Annoying Comments and Messages.espA4  bgMagicLightningbolt.espA5  DS Flaming Arrows.esp  [Version 1.1]++  Magic Projectile Variants.esp++  Visually Realistic Lava.esp++  X-Ray Detect.espA6  Visual Enchantments v1.0.espA7  NRB4 Standard Road Record.espA8  Bashed Patch, 0.esp