The only other download I have is the Ford Edge from the launch menu, no other items, not even any custom hair

Unless somehow there was something contained in the empty neighbourhood template, but I don't know if that's even possible? I'll get the utility anyway and check.
Could it be something to do with the state the game was in when I saved before putting in the hacks? It's more difficult on dorm lots to make sure no-one's doing anything they shouldn't be.
ETA:
Report Start 16/05/2008 14:36:30
End Of Report
0 possible conflicts detected.
Edit 2:
I went into debug mode to wake up an inconveniently passed-out dormie and started getting lots of errors related to the computers (Attribute number out of range) - cancel and reset did nothing, so I hit delete and the screen of the humble computer went to flashing blue. Getting the sim to turn it off fixed that but still no game options. I sent him to buy a new game (C&C) and then he had the game options on comm lot computers but not the ones back at the dorm. Moving him out of the dorm and into a house (bringing the humble computer in inventory again) seems to have fixed it - he can now play SSX3 and C&C solo or as a games competition. I guess for the moment I'm just going to leave the nohumble hack out of my game, unless the error logs I was getting would be of use to figure out what happened?