Hi I have a computer that operates on windows vista. I turn it on and it takes about 30 seconds for the monitor to come out of sleep, another 30 seconds for the mouse to appear and then that's it. Nothing else. If i press ctrl-alt-del the blue circle (the timer?) comes up, flashes on and off then goes off again. Same with esc and f8. I can move the cursor about but that's all I can do. I've put my windows vista home premium disk in to see if I can just re install or repair but i get nothing. The blue circle appears for a moment, flashes then stops. I've tried the disk in both drives but nothing happens with either. Any ideas? It hasn't been working for a long time and I miss my beautiful pc with all my photos on it.