#Virus
John,
From your description I doubt that you have a virus.
It may be that the drawer icon is hidden behind the project icon in
question. You might consider doing a Clean Up. Khalid's Float utility comes
in handy if you would like to remove any fixed positions and let Workbench
position the icons for you.
In combination with this, you might also have a flakey mouse button. Have
you had any trouble with the mouse?
Hope this helps. 8)
David