Can't this be a language problem? I mean the (cracked) executable is hardcoded for language X but the resource files contain messages for language Y only => no message is displayed...

Hmmm. If it was set in a different language, wouldn't i see the error message in that language? It's a good idea though, i definately check the languages.

I checked the logs in my documents/EA games/Sims 2/logs and found exception code: 0xC0000005 (-1073741819) ACCESS_VIOLATION.

I have version 1.6.0.259 which i believe is the latest, i have the crack in the install dir and my image mounted in DT4.06.