Further to my previous posting. The problem hasn't gone away after all; however I have managed to pin the cause of the problem to be my Maxtor external hard disc. I use this disc for periodic backups of various parts of my main hard disc. When I want to use it I plug in the power cable before I switch on the system and this seeems to create the problem; if I connect the power after starting the system all seems to work OK but means I give an extra power jolt to the system which is not what I want to do. This is a new phenomenon. Any ideas please
The reason I started a new thread is because I had closed the original down thinking that it was a system fault and had been cured. Re: plugging in I am talking about the AC power not USB. I do not have on all the time because if I do the fan runs all the time and not when I am moving data which is why I only connect when I need it. I don't have an On/Off switch.
If you want to close down this thread and your other one. Scroll to near the bottom of the page. On the righthand side you will see a button with the word 'Resolved' on it. Click the box next to it and a tick will appear, now click the 'Resolved' button and you are done. :¬]
This thread is now locked and can not be replied to.