Put it on two machines at work and so far so good. :bigsmile:
Did find one incompatibility though. If a machine is backed up with file transfer wizard sp2 it will not transfer to an sp3 machine. Not a huge issue as I back up manually most of th time but something to look out for.
I had to use Norton Ghost to restore my computer. I installed XP Service Pack 3 and it caused the computer to enlessly reboot (without loading Windows). Others have also reported the same issue on various forums. I guess I'll wait for a while before "upgrading".
Loaded SP3 on 3 machines and it KILLED one of them. Not immediately but after a few random reboots. Couldn't even get a bios beep out of it but luckily I found the "flash drive /PS2 K&M" trick to get it to boot and uninstalled SP3. Everything fine now.
SP3 works fine on my laptop, but for some reason stops my girls laptop from being able to access any sort of windows update (a common enough problem). I looked over the web and tried every available fix from the MS offered one to random users fixes and nothing so I just restored her computer back to sp2 and am waiting.