I did a clean install of XP and PinballX seems to be working now. I haven't had time to set up visual pinball yet but PinballX at least starts up so that is major progress!!! I will continue to set everything up and hopefully all goes well. Thanks for the quick responses. Hopefully this was just a quirk and not a serious issue. The only difference with the installs is this time when I installed XP I had no issues with Windows Update. I was able update last time but I had to get an ISO of SP3 and install it manually. This time it just worked without any problems. So, maybe something important got left out during my last install. From what I have read, this is a known issue with Microsoft. Probably has something to do with XP's end of life coming up soon. Anyway, thanks again for the help!