Dracus

Hey all, I've looked in auite a few topics and I can't find this problem anywhere else, but if it's around sorry in advance. I installed RA 1 using the XP patch, but when I tried running it, it came up with this error; "An privileged instruction was executed at address 005c1fa4". I'm not sure what the problem is. I've re-installed it and followed the patch instructions to the letter several times but it still isn't working. Does anyone know how to solve this problem? Thanks, Dracus