When I try to rename a file, I right click on the current filename then left click on "rename" . But it doesn't give me enough time to go to the filename to change it. This doesn't happen all the time, but enough times to really frustrate me. At the same time, I notice that the open windows flicker. I don't change any settings and it starts working okay for a while. I am running Windows 7 on a 3 month old Sony laptop. Thanks for any help.