Strange pop up box
i have a client who keeps getting this pop up box on their system, it happens randomly and will close eventually. It looks like a small box with a x in the middle with an ok underneath, no reference to any program. I have checked all startup programs etc, I think it has something to with norton anti virus as it pops up the most when opening it. Dosn't seem to affect anything.
Any ideas appreciated as I have searched the net for answers for them.
Thanks Turtle