First, I want to really thank all the people who responded to the problems I was having. This site is a very cool resource, with lots of useful tips and information. In the hope of helping other poor souls...... Remember, I couldn't get eDune to work with XP; it just wouldn't load? Surprisingly I eventually managed to get eDune working - WITH NAV!! How? Well, as with most computer fixes, I had to get awfully methodical. It took a while. (to complete that is, as opposed to me getting methodical) First, I deinstalled eDune, cleaned up afterwards, including editing out all references in the registry. I then updated every driver I could find, using Windows Update, and the manufacturer site for the video. I then cleaned out all the temp files I could find, deinstalled any old programs I didn't need, deleted any old files...usual housekeeping stuff. Then ran DEFRAG for good measure. Okay - with the PC in the best shape I could make it, I re-installed DUNE using the "CDROM" patch EMPENGINSTFIX10; taking the time (as the instructions said) to first set up a new "SETUP folder, copying over the new setup file, then installing eDude, then copying the new game executable over. AND IT WORKED! Now if I can just work out why it now causes my desktop to bluescreen at random times, I will be happy. But it only occasionally womps my game.... Thanks again for all of your help, guys.