Windows 7: USB pen drive problem :S

i am running windows 7 ultimate N and well i have a U3 Titanium drive made by san disk. all other usb pen drives work perfectly except for mine, the one with all my work on it. i hav tried uninstalling it but when it tells me it is installed. i am not sure if this is a diver problem or something. i have tried searching google. but i really need a quick solution to this because i hav a major assessment due next week and its on the pen drive.

it is not U3 because i tested my sister's u3 and it works fine, it is not the pen drive because it works on XP and Mac OSX. it is not that my computer cant mount pen drives, because everyone else's works... and i hav attempted al ports, using hubs, KVM's nothing seems to work o.o



the cd drive that is mounted for u3 to start up will mount but the usb wont, cannot access through computer manage> disk management

Regards,
Jape