Vista Ultimate X86 version. When I right click on any exe file the screen flashes and nothing happens, no menu, no way to get to properties. Same thing happens if I highlight the exe file and then hit delete. But when I double click with the left mouse button my programs work correctly. I have run a full scan from all these programs and they have found nothing. AVG free Spybot AdAware Malwarebytes I have updated all drivers and Vista is up to date as well.