I haven't been able to use Fractint since back when I had Win98 & NT; it won't run on my WinXP-MediaEd now (Intel machine), though I understand XP may work with Fractint on an AMD machine. My question is this: Which OS does Fractint "like" the best... Which OS will it run the best on??? [Unless Fractint runs much, much better on DOS (MS-DOS, FreeDOS, etc.), I would really prefer an OS with a GUI... for my sake.] So, what do you think?: Win98; Win98SE; ME; NT3-4; 2000(NT5.0); WinXP-Media-Pro-SP3; 7... ? 32-bit? I've just ordered an old AMD PC just for Fractint (Dell OptiPlex 740 Athlon 64 X2 4600+ 2.4GHz 1GB 80GB CDRW/DVD XP Professional Desktop) ... I don't know the Video card yet. There's a chance Fractint may work on this AMD with WinXP Pro, but what do you think would be the best OS for Fractint on this machine? Thanks much for your suggestions!! ...Knute --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com