I Recently downloaded the new ATI Catalyst 6.6 drivers and i am having trouble installing them. everytime i run the installer, half way through the installation i get an error box telling me that "C:/WINDOWS/SYSTEM32/lsass.exe has been terminated unexpectedily" and a countdown begins telling me that my pc will restart in 1 minute. my Catalyst does not have time to complete the installation or is partcialy installed. why is this box occouring?