I recently replaced several computers and one of them is having a strange problem with Outlook. When a message window is open and the user is typing, the window will temporarily "disappear". You can still see the outline of the window, but the actual window itself goes away.
Click here to see a printscreen of the issue:
While the window is like this, it still has focus because when the window eventually reappears, everything that the user typed is there. He says that what he usually does is moves his mouse, and this causes the window to reappear. It doesn't happen every time, but it happens several times a day and I was able to reproduce it once and took the screenshot above.
The system is Windows 7 64-bit with Office 2007 Professional. I deployed several other identical systems from the same hard drive image, and I am not aware of any additional software that has been installed on the system with the problem. This has been driving us crazy, please help!