So i downloaded this mod Nehrim, it basicially adds a new world...and i wanted to go back and continue with Oblivion, but the problem is its all messed up now, the text is all Nehrim text, etc. How do i reset Oblivion's user interface???

Note: Nehrim uses 'same' Oblivion.ini and plugin.txt. So if you're playing both:

1. Rename the files everytime you play either of them. I know, it's annoying.
2. Use OBSE plugin http://www.gamesas.com/index.php?/topic/1116792-rel-inizer/ to assign Nehrim its own .ini file and plugin list.
3. Use http://www.tesnexus.com/downloads/file.php?id=35263 to manager multiple copy of Oblivion install(including TCs).