'Sigh' ok so here's the deal:
I resently bought myself a 250 GB hdd, since my old 20GB just wasn't enough.
I thought that since I already had an 16GB USB memory, why bother with a transfer cable?
So what I did was to transfer over all of my contents, first my USB content, and then
the content stored on my 20GB, by first transfering it to my USB, and from there
transfering it to my new hdd.
Everything seemed to work out just as I'd planned, until I decieded to install all of my games
to the hdd. But suddenly I "hit a brick wall" when trying to install Assassin's Creed Brotherhood!
In the middle of the installation process the console automatically restarts and when I check my hdd under system settings
it says that the data for ASB is corrupted. Had to delete it AND clear the system cache, or
otherwise the corrupted data would pop up again the next time I turned on the console. Other problems I encountered
was that unless I'd cleared my cache, I couldn't transfer content to my built-in 256MB memory (Arcade... remember ;)),
nor could I log onto Xbox Live(!)
Also tried with a couple of other games I had yet to install, including GoW 2 and Mirror's Edge,
but the same problem occured.
All of my DLC seem to be working, and the console doesn't struggle with playing any game,
be that playing from the new hdd or directly from the disc. It's all very strange and annoying.
Please answer if you have any tips on the subject (besides re-formating, which would be my last resort and a big pain...)