Mine does not have that problem. As I said, I did have a problem like that before, quite a long time ago, but it was not for very long. I'm pretty sure it was a setting in Settings > Customize > Display. If it wasn't because of my settings, then a reinstall of the 727-100 Base Pack fixed it.

So maybe you should try reinstalling the 727 using the repair option, it might fix the problem.
Remember to use the Run as administrator option if your OS is Vista/Win7/Win8.