ok, iv looked at the event log in a bit more detail. It seems there are 3 main sources of error, one is some service crashing which seems harmless, the other is something to do with network browser which happens every time another computer connects to the network and is also harmless.
The 3rd one is a bit more interesting. The sources of these are system errors and i think they co-incide with the times wen the comptuer restarts. The event is 1003, and the category is (102). I right clicked on this and clicked properties to be given this information:
Error code 100000d1, parameter1 013108fa, parameter2 00000002, parameter3 00000001, parameter4 ba864404.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp
I went to the above website and this confirmed that one of the symptoms are the comptuer auto restarting. Also, it said there is a message on restarting saying "the system has recovered from a serious error blah blah send error report blah blah" This does indeed happen sometimes, although not all the time.
According to microsoft knowledge base this is the cause:
"This problem occurs because the driver for the USB Universal Reader from Lexar Media, Inc is not compatible with Windows XP."
And this is the resolution:
"To resolve this problem, obtain and install the latest driver from Lexar Media, Inc."
The problem is that iv never heard of lexar media, and i dont have any USB universal readers made by them!!!
Any ideas what else could cause this error?
Sorry for such a long post.
Cheers ofr all help!
Edited by Hooky1742, 08 March 2007 - 02:35 PM.