Help! Help! Help!

when i use MAT Automation..
and start the game.. it says the injection of Mat automation was succesful, but The game always never appear.

i checked the processes.. and there was no MAT.exe after the injection..

i tried to start the game without automation and it was fine..

what might be the problem??

i have net frame 2.0 and 3.0 service pack 2..
running on Windows XP..

PLEASE HELP
Thanks guys..

There is no sollution yet.

OK thanks.. i think.. i just have to stick with a plain wallhack