Ok here it is : I use RunOnceEx to start autoit script which installs my programs (winamp,mv2player,codecs,etc ,etc) then it start a driver selection program (little prog that i have made in delphi ->if u check driver/s to install it creates .ini file with drivers selected) and then read from .ini which drivers to install.It installs everything perfectly , but after a restart i got a resolution 640*480 at 4 bit , and only reinstall of gfx driver solves the problem. Driver i use is Nvidia 61.77,(autoit installs it without problem). I have set to ignore unsigned drivers in winnt.sif (and it do -> it does not ask to continue installation) How to solve this ? Can this drivers to be installed using runonceex (after logging and before desktop shows ) ?? Thanks in advance!!!!