I have recently come accross a strange problem. Some applications that need to run full screen will run minimised, such as Aquamark03, refusing to run full screen. They can only then be closed with task manager. Other full screen applications, such as counterstrike, will run full screen. If i alt tab, or accidentaly hit the windows key the same thing occurs. I haven't changed my graphics card drivers recently, so its unlikely to be them & run regular checks with antivirus/spyware etc. The Pc is running WinXP pro, with a 3Gb P4 & 1Gb ram.