Hi, at last!
I am having some computer problems.
It has been taking me a while to get here in these last few days.

Earlier at Am's...
In the past say, 6 months the computer would occasionally freeze, needing a switch off, and then a re-start.

Since last week...
Switch on at back, press start button, some whirring sounds, and nothing more.
Switch back off, and repeat procedure (giving about 10 sec in between).
If lucky, it would boot up to Win XP desktop, and freeze there, so repeat switch off/on.
Usually by about the 4th go it stays up and running.

During this start-up drama, I might hear the OK system beep about half the time.

System: Intel Core2Quad, 2GB, Win XP SP3.

Any ideas/warnings/advice?

Ta.
Am(getting sick of it).