Ok, i'm currently running XP Pro, which I installed over 98. I'm having lots of problems, so I decided to do a reinstall of XP, but reformat first and do a clean install. I was thinking though, If i'm going to go to the trouble to do all this, I might as well install 98 SE as well so I can resolve some compatability issues, I still have lots of 98 software that wont work in XP. What I need is help doing this. I know it requires a partition. My HD is a 20 gig, how much would I partition for 98, and how does the whole thing work? I need to know everything from actually partitioning, to installing both, to setting up both, and how each is selected and such. Please help guys, everyone here is awsome with this sort of stuff.