Following my recent thread in the helproom click here, I've had a rethink and decided to try Vista Home Premium and increse my RAM to 4GB. I would like to retain XP Pro whilst I get used to Vista. The question is - Can I install Vista on my C: drive alongside XP or would I be better putting in on my D: drive (a separate drive)? Would this be a straightforward install or is there any special procedure to follow? I'll back up both drives before starting the install just in case!!