you could try this one it sounds to me like a virus
1 i asume that u r running xp
2 control alt del brings up the task manager
3 look to see if there is a particular file that is using a lot of resources, (note there will be one normally the last in the list that displays about 90 odd % this is normal as this is the amount not being used)
4 if there is a file that using a more than normal end the task to give you back the resources.
5 look for a file that is somthing like averserv
6 assuming you have found one end tasked the the affending file your machine may try to shut down with a error message
7 go to run from the start menu and type (setup -a) this will stop the machine from rebooting you will need to be a bit quick as you will only have a few seconds to enter this info and hit return or click on ok
8 once you have done this it will give you time to update antivirus programs or down load cleaners if it turns out to bes asser worm you could be left with file that antivirus programs keep brining up that are not really virus but are still concerning they could have many different names but (swa bliss d or swa small c) spring to mind to remove thease file reboot into safe mode and remove files .
this may help good luck
kev from pioneer
July 2004