which of the games do you want to make large memory aware?
please post your dxdiag results file - also please post the error message from the event viewer
did you update directx 9c manually at some point?
just making sure you updated directx 9c and not directx 10 - the site would look like this: http://www.microsoft.com/downloads/...38-db71-4c1b-bc6a-9b6652cd92a3&DisplayLang=en
this is an access violation error - is the game installed with administrator rights?
@strategyonly: could you post that exact error message?