I'm running Windows XP. When I first ran into this problem I contacted the Microcode Studio vendor Mechanique. They suggested some deletions to the XP registry(can't remember exactly what). The fix worked for a while, but the problem kept coming back repeatably. After a while I gave up and went back to PBP 2.60 and the regular MCS (not the X version). This caused some new problems, because I've switched to using the 16F1 family of PICs. You are supposed to use PBP 3.0 with these devices. Somehow, my programs do compile, but I don't get any error highlighting when there's a syntax error.
Dick