Question about the Steam version

[delablake]

OK, thanks a lot! :)

Edit: I have a recurring problem: the game installer of my new DL of total war medieval keeps telling me, that the program would already be there, aborting the install, after the direct download of 12 GIG...
When I try the manual install from the temporary files, the game-code is not accepted.
I am pretty desperate, since this ONLY ever happens to me with this frigging game...Medieval II
Any hints?
Thanks!