That is so strange, the drive should just work on a USB2 port. I could see XP having issues reading the drive in exFAT, until the exFAT update was installed, but on the other Vista and W7 systems it should be no problem at all.
Certainly something weird with that drive, probably best to get it replaced.
Start a support ticket here and we'll get that drive replaced.
The administrator has disabled public write access.