Bob & Vlad,
I tried this solution - it wasn't one! - the .exe file is littered with a: b: c: d: e: f: g: ...... z: references. All of these are obviously not the drive letters for prefixes to files. If you change too many the exe just crashes! - there aren't even any of the drive letters with a back slash in them.
Any other ideas? Other than keeping a CD in the drive if its setup as Drive e:
Thanks anyway,
regards
Ian