all external drives appear as raw

[DragonMaster]

Hello,

strange problems with my Dell XPS L501X.

A flash drive appearing properly FAT32 formatted on another system appears as a RAW filesystem on the laptop.
Now again, with a DVD-ROM. It works properly with my external DVD drive on another system, but I use the SAME drive on the L501X and it appears as a RAW partition again...
Really weird. Aware of any fixes apart from reinstalling Windows?

Thanks!

 

[DragonMaster]

oh by the way, for example imgburn will read the cd properly, but windows itself can't mount the partition and sees it as raw...