Hey Guys, My PC: Pentium 3 1000 Mhz 512 RAM 60G HD - on Primary Master (Win98se - DAW) 80G HD - on Secondary Master (WinXP - General) I have a dual boot system (win98se & xp prof). My DAW is on win98se and general computing is done on the xp system. I tried to use Boot Magic to choose which system i wanted to boot from, but couldn't get it to work. Instead I was using the built in feature in xp. This was working perfectly until I optimised the DAW HD with Norton Utilities - now I can't boot to the DAW system. When I choose the DAW system from the menu an "Invalid System Disk" error occures. I think what might be the problem is that for some reason Norton might have stuffed up the boot record on the DAW HD. I'm not too sure If anybody has had a similar problem I would be greatful for some advice on how to fix this problem.