It'll play the dialog, then just keep on the same slide and never advance. Reloading doesn't help, it just picks a different slide to stop at.
I use mods, here is my load order if that helps.
Spoiler
[X] FalloutNV.esm
[X] DeadMoney.esm
[X] HonestHearts.esm
[X] OldWorldBlues.esm
[X] ClassicPack.esm
[X] Project Nevada - Core.esm
[X] Project Nevada - Equipment.esm
[X] Companion Core.esm
[X] Companion Share & Recruit.esm
[X] Run the Lucky 38.esm
[X] AmmoSpreadEffectFixer.esm
[X] aHUD.esm
[X] iHUD.esm
[X] CINEMATECH.esm
[X] The Mod Configuration Menu.esp
[X] DYNAVISION 2 - Dynamic Lens Effect.esp
[X] ELECTRO-CITY - Imaginator.esp
[X] Directors Chair.esp
[X] Echo_PipboyGloveRemover.esp
[X] CASM.esp
[X] DarNifiedUINV.esp
[X] MiscItemIconsNV.esp
[X] Project Nevada - Cyberware.esp
[X] Project Nevada - Rebalance.esp
[X] Project Nevada - Rebalance Rebalanced.esp
[X] Project Nevada - Dead Money.esp
[X] Project Nevada - Honest Hearts.esp
[X] ASEF - Project Nevada Dynamic Crosshair Patch.esp
[X] WeaponModsixpanded.esp
[X] WMX-DeadMoney.esp
[X] WMX-HonestHearts.esp
[X] WMX-ModernWeapons.esp
[X] WMX-ArenovalisTextures.esp
[ ] WMR_WMX_A.esp
[X] WMR_WMX_S.esp
[ ] WMR_WMX_R.esp
[X] Project Nevada - WMX.esp
[X] Mail Order Catalogs.esp
[ ] Mail Order Catalogs hardcoe.esp
[X] Mail Order Catalogs DLC01.esp
[X] Mail Order Catalogs WMX.esp
[X] Mail Order Catalogs DLC01 WMX.esp
[X] Mail Order Catalogs WMX Modern Weapons.esp
[X] OldGhoulEye.esp
[X] OldGhoulEye-ProjectNevada.esp
[X] OldGhoulEye-NoHeadbandSlotForHeadgear.esp
[X] Starke's Seperate Chinese Stealth Armor Helmet NV (OA Version).esp
[X] Starke's Seperate CSA Helm PN Patch.esp
[X] CRHDV3O2.esp
[X] VendorBulkBuyFixer.esp
[X] VanGraffHostilityFactionFix.esp
[X] VanGraffHostilityQuestFix.esp
[X] Nevada Skies - URWLified.esp
[X] T3T_MergedPatch.esp
[X] DeadMoney.esm
[X] HonestHearts.esm
[X] OldWorldBlues.esm
[X] ClassicPack.esm
[X] Project Nevada - Core.esm
[X] Project Nevada - Equipment.esm
[X] Companion Core.esm
[X] Companion Share & Recruit.esm
[X] Run the Lucky 38.esm
[X] AmmoSpreadEffectFixer.esm
[X] aHUD.esm
[X] iHUD.esm
[X] CINEMATECH.esm
[X] The Mod Configuration Menu.esp
[X] DYNAVISION 2 - Dynamic Lens Effect.esp
[X] ELECTRO-CITY - Imaginator.esp
[X] Directors Chair.esp
[X] Echo_PipboyGloveRemover.esp
[X] CASM.esp
[X] DarNifiedUINV.esp
[X] MiscItemIconsNV.esp
[X] Project Nevada - Cyberware.esp
[X] Project Nevada - Rebalance.esp
[X] Project Nevada - Rebalance Rebalanced.esp
[X] Project Nevada - Dead Money.esp
[X] Project Nevada - Honest Hearts.esp
[X] ASEF - Project Nevada Dynamic Crosshair Patch.esp
[X] WeaponModsixpanded.esp
[X] WMX-DeadMoney.esp
[X] WMX-HonestHearts.esp
[X] WMX-ModernWeapons.esp
[X] WMX-ArenovalisTextures.esp
[ ] WMR_WMX_A.esp
[X] WMR_WMX_S.esp
[ ] WMR_WMX_R.esp
[X] Project Nevada - WMX.esp
[X] Mail Order Catalogs.esp
[ ] Mail Order Catalogs hardcoe.esp
[X] Mail Order Catalogs DLC01.esp
[X] Mail Order Catalogs WMX.esp
[X] Mail Order Catalogs DLC01 WMX.esp
[X] Mail Order Catalogs WMX Modern Weapons.esp
[X] OldGhoulEye.esp
[X] OldGhoulEye-ProjectNevada.esp
[X] OldGhoulEye-NoHeadbandSlotForHeadgear.esp
[X] Starke's Seperate Chinese Stealth Armor Helmet NV (OA Version).esp
[X] Starke's Seperate CSA Helm PN Patch.esp
[X] CRHDV3O2.esp
[X] VendorBulkBuyFixer.esp
[X] VanGraffHostilityFactionFix.esp
[X] VanGraffHostilityQuestFix.esp
[X] Nevada Skies - URWLified.esp
[X] T3T_MergedPatch.esp
Thank you for your time.