This is driving me nuts. I'm working in a remote desktop session. I've got the remote desktop up on my right screen, then I go to to my left screen which has Excel running in it. I click on a cell and Excel doesn't recognize that I am trying to use it. If I click 5 to 20 additional times (completely random how many), it finally starts working. This doesn't happen with other applications. It also doesn't happen if I select Excel on the taskbar first, but that's a pain in the neck after awhile. Any ideas?