https://sureai.net/forum/viewtopic.php?t=4204
I know it's alot to redownload, but have you considered using a different version of the installer as well?
That's precisely what I mean. It's possible you got an odd bit, however, it is a long shot, and I doubt it'll help, but it would rule it out.
What windows are you using?
Have you tried a registry cleaner before/after installation?
Did you have an anti-virus software running during your installation?
Did you have a modded Oblivion prior to installation or any other Oblivion install that you played?
Have you deleted the ini file in the My Documents section and allowed it to remake a new one?
Windows 7 x86-64 Pro
himmelslicht wrote:You can only have either Windows 7 x86 OR Windows 7 x64Windows 7 x86-64 Pro
You could also give it a try to download the latet DX9 Runtimes from Microsoft.com. A newly setup Win7 System has no DX9 runtimes.
Also, even tho it sounds weird, try unselect, and reselect the Nehrim game files. Im not sure if the Launcher can select them automatically.