Unable to run ME Andromeda and Dragon Age 3

Hi holger1405 : i come back again on this post just to let you know that i have finally been able to solve my problem for my 2 problematic games: it was a combination of 2 things that seems to solve the problem: 1) uninstall with Revo uninstaller (which was the tool you asked me to use to uninstall my graphic card drivers) and 2) re-install on my C: drive instead of the other drive i use for my games: in the past, i tried to directly reinstall on the C: (without uninstalling the one on the D:) and i tried classic uninstall.. without success... but this combination did the trick !