Debug, doesn't work to well in multitasking enviroments like windows, it uses low level interrupts. You'll need to boot up in a DOS to get meaningfull results or in most cases to get results at all. Since your running XP, which doesn't have a way to drop to true DOS, you'll need a boot disk to get this working. Don't forget if your hard disk partition is NTFS (Which it should be), you won't be able to access your files. So, you will also need a FAT32 partition to work with, and copy any files you'll be using or need to it using XP. Hope this helps...