[gareth08]

Paul,

Turn of pc and reboot in safe mode.
Then run a full system scan using your anti-virus software.

Failing that and you can start the pc click start, run and then type in msconfig and click ok.

This will take you in to the boot up screen where you can safe boot from here.


If you can't do any of that then you are in trouble unless you can identify and isolate the problem.

HTH

Gareth