I've moved 320 Gb Hard Drive from XP machine to Vista

It had primary 100 Gb partition, and 220 Gb logic drive on the extended (was C: and D

Drive went in fine, I can see and use former primary partition as a new drive. Second partition, however, is seen as a Drive in explorer, but can't be opened ("System can't access drive" mesage)

Both look fine on System manager/storage.

I set access to all "allow" (it was undefined).

Still no luck.

Any suggestions how can I get to mu files (at least temporarily)?