hey, i have windows xp and a 750mb zip drive and i am useing a 100mb zip disk on my computer and it will read from the disk but it won't write to the disk but my friends computer has windows 98 and a 100mb zip drive and their computer will write to my 100mb zip disk but mine won't my computer (xp) keeps telling me that my disk is write protected what do i do? i have a 750mb zip disk and it writes and reads without telling me its write protected but the 100mb disk says its write protected.