Since I have too much fun downloading and playing mods, I decided to knuckle down and try to actually get the main questline finished (because I've never managed that yet...)

I did a clean install with shivering isles (backed that up after I patched it), and put in all the usual programs- obmm, wyre bash, obse (fast exit, weOCPS, pluggy 1.32, menuque7, OSR, elys silent voice), streamline (i directly edited the default INI cuz I though it would be faster and less hassle) and BOSS. I also used the 4GB patch on my oblivion.exe, and used OBMM to uncompress my textures.bsa, where I renamed it 'Oblivion - Textures.bsa' and changed the INI accordingly.

Then I installed the things I count as necessary =D Unofficial Oblivion Patch et al, qtp3R, and a fair few texture replacers (all the imporved ones, koldorns, better cities, AWLSC, atmospheric weather), HGEC, and Darnified UI.

I have dual monitors, and Oblivion was running in the main one. Upon starting it from the obse loader ( i also tried plain oblivion.exe, same result) both monitors flickered to black, changed screen rez, flickered to black, changed rez again, and then the loading menu comes up... completely white. At the main men, the oblivion 'title' graphic is a white box, as is where the mouse is supposed to be. Ifi try to exit, I get a white box with text in it- ie, 'exit now' etc on a white background. I can see new, load, resume etc.

I tried using obmm to un install, reinstall darnified UI. Didn't work. Got to googling- I found someone on the Tech wiki with the same problem, but their question was never answered. An then I had an ephiphany. I did a BSA redirect with OBMM (default settings, i just clicked the button.) But again, same result as above. I'm sure there is something that I've done wrong, but I isntalled everything the same way that I always do.

If anyone can suggest a fix I'd be more than grateful, because I'm completely stumped.

Some specs-

Dual monitors.
ATI Radeon 4800
8 GB ram
320GB velocoraptor HDD (partion for OS, second partition for games- oblivion is on the games partition)
dual core e8400

Try disabling the second monitor. Oblivion can be really finicky about that kind of thing.

I found that uninstalling the game/ deleteing the gamesas folder doesnt always get rid of them. For me there was another folder in Computer/local disk/users/(your username)/AppData/Local/virtualstore/program files there you'll find an additional gamesas folder. Please note that you wont be able to see the appdata folder and beyond unless you have show hidden folders inabled. Also these program files are different from the normal one where your game was installed.

I don't think disabling my second monitor would help with my munted menu screen, though it is a good point. I've had oblivion for a few years now, and it's never been bothered by the second monitor.

I did delete the /appdata contents, and everything under 'my documents/my games' before I did the clean install. I also cleaned my registry out as well.

What's so perplexing is that I've clean re/installed Oblivion about ten times over the last few years, and i've never had this problem before. I figured since it was mostly just texture replacers there would be no problem... but even after using OBM to do a bsa redirect, it still isn't playing nice.

*sigh* Thanks for the help though, HeyYou and Hellwege. I think I'll just delete everything and do a completely fresh install again, and test after every mod (which I hate because it is tedious, but might spare me the menu white-screen drama).