[in_vino_vomitus]

I'm no expert on this, but I know mod compatibility can be problematic. The order in which you install them is often critical and they can interact in funny ways. As a for instance, I installed the Bigger, better protractors mod before I installed OM, and when I went to draw a line on the chart, the line appeared on the edge of the protractor at about the 150 degree mark. Fixed by installing in the right order. An error message that says the game is looking for an item that's not there, suggests that one mod is out of sync with another.

If you want to play more than one version of the game it's best to have each supermod in its own individual installation. Sailor Steve [I think] wrote a pretty comprehensive set of instructions on how to do that. My advice re: copying the game files into a clean folder was lifted directly from that. I have 5 installs on my machine: RFB and TMO with and without RSRD and OM, with numerous other minor mods. If you're going to chop and change between major mods then that's probably the best way to do it. I'm prepared to be proved wrong on this.....