thanks. hopefully one of these will get it working.
Copied strait from the read me.
First be sure that your installation went exactly as described here.
1. Possibility - Patch forgotten
Although Nehrim does not need Shivering Isles, Oblivion must be updated with the latest patch
(1.2.0416). If you use the Game of the Year Version of Oblivion, you may think that the newest
patch is automatically provided with it, but be aware: The GOTY edition only contains the latest
patch if you have installed Shivering Isles with it. If not, then install it or download the patch (for
Oblivion, not for Shivering Isles) from
http://elderscrolls.com/downloads/updates_patches.htm and
install it.
2. Possibility - Wrong INI-Data Configuration
A common reason for this is that the file:
"My Documents\My Games\Oblivion\Oblivion.ini"
has some changes in it that will cause Nehrim not to work. The simplest solution is to rename this
file or move it (or delete it if it is certainly no longer needed), so Nehrim will not find it. The next
time Nehrim starts it will create a whole new, fresh and accurate Oblivion.ini. Then you must,
however, again reset any new game settings and ini tweaks you previously had or want to use.
3. Possibility – Wrong game files activated
In the option “Data Files”, make sure that only the files Nehrim.esm and NehrimData.esp are
enabled. ALL OTHER GAME FILES MUST BE DISABLED.
4. Possibility - Corrupt Oblivion Installation
Sometimes the Oblivion installation gets damaged, which also affects Nehrim. For instance you
may have moved the Oblivion folder or reinstalled Windows without having uninstalled your
games. It may help to make a fresh installation of Oblivion.
5. Possibility – Installed into the wrong folder
Nehrim should not be installed into the Oblivion folder or into the Program/Program Files (x86)
folders. If this is the case with you then uninstall Nehrim and install it into a different folder.