After posting back in September that we had installed XP SP2 on 3 of 6 identical Dell PC's - we had a drastic slow down in the plotting process to our HP 1050C Plotter (which was connected to a [plot server] PC w/ Win ME) The quick fix = uninstall SP2 until I could figure it out... well we finally came to a situation where we had new PC w/ XP & SP2 already installed in the OS. I called HP & Microsoft - HP says we will charge you $ to talk to our tech "yeah right" (I know more than they do normally) NO THANKS!! - next is Microsoft - whew after hours of musak and phone transfers - i got through to a tech that had a brain - but he still didn't have the solution... he did say something that triggered me to try something though, he said "xp sp2 treats drivers different" that is when it hit me... Although MS makes both OS's XP & ME - they didn't make them compatable... no real suprise - so I bought a copy of the XP upgrade and installed it on the Win ME plot server... BINGO!!! TOTAL FIX!!! I went back to each of my other machines and started the SP2 d/l and each machine now works perfectly!!! No Magic required - just remember Microsoft is greedy and wants your money so buy the latest software and install it on everything and it works... Conclusion - Needless to say I've had it with HP and MS tech support... We just bought a new server for the office and I'm installing LINUX SERVER OS (FREE) not to mention all the other goodies that come with it free as well. I now run XP Pro, Mac OS X, MS Server 2000 & LINUX!!! Good luck all...