When i go to turn on my computer everything loads correctly, it then goes to the desktop and the next thing is i've got a white advertisement box in the top left corner. I can't click it off because there's no 'x' and for some reason i can't open the task manager to try and close it. I've ran quite a few adware and spyware programs. None of them have removed it...yes they have found other objects but none that fix this problem.
PLEASE help!!!
Thanks.