S0metimes when I boot up it will not complete it. The sequence at those times is as follows, On switching, on the Bios window appears, then a white progress bar runs acros the bottom of the screen, Then the Microsoft window with the Microsoft logo appears with a horizontal bar in which 3 blue little squares run across from left to right but when it plays up the 3 blue squares are stationary, unlike normally when they run across about 6 times. After that it will go no further and the welcome screen does not appear. I then have to turn the PC off via the on/off button on the front of PC. On switching on again I am offered the option of starting normally or using last known configuration. Using either of those options will boot it up fully ok. The problem does not happen every time i bootup. My OS is XPhome sp2. Can anyone suggest what might be causing this please.
Thanks rawprawn, good thought. Connections not been disturbed but vibration can cause dodgy connections. Wlll check that out. Should have said at the beginning that once it has booted up completely then everything functions ok.
Just further to my original post, I had a similar problem some time ago, and it turned out to be a bad IDE cable. If you could try another it would prove one way or another if that is indeed the problem. Having said that the other people trying to help do not seem to be leaning in that direction.
Hi buteman, Have checked already for dust/fluff etc. No fluff and very little dust but have blown out the dust with compressed air aerosol. Have also checked HD connection ensured ram seated ok. Will try a system restore. Many thanks for your reply. Thanks to all previous responders.