It did not come up
in " My Computer ", so I don't think it was mounted in XP, I think.
This also happens if the drive isn't partitioned.
Also, that is when I noticed that my USB drive
disappeared from my Mac's desktop. Is it not possible to have both drives mounted?
That's very strange, and should not happen. Did the USB drive somehow get connected to the guest?
Do I need to partition the drive
into a windows and a mac drive?
No, this should not be necessary (and won't help for a normal virtual disk, which is what I think you have).
When I tried to put a Shared Folder on the drive, a similar thing happened. The drive disappeared off my Mac's desktop.
Again, very strange and should not happen. Post your .vmx?