Over the last few months our computer has been experiencing worse and worse technical problems and we have put this down to its age, its gradually been getting slower, less responsive etc. Recentll though something worse has been happening, around half of all times we log off our settings and the computer goes into standby, we can't get it out of standby, the screen is black, but unlike normailly when the desktop light is yellow in standby, it is green. No amount of moving the mouse helps, nor does any combination of keys. We have done many virus checks and still cannot think what may be causing the problem. Any suggestions?