I have a stationary computer with 64-bit Windows 8.1. It is a new Asus M51AC delivered with Win8.1 and has been running fine with Aero Glass for a week, looking good. However, today I decided to add IIS to the machine, and after reconfiguring, I am locked out from my own computer. Aero Glass sits in a loop where it continously pops up MessabeBoxes on the login screen; Compatibility Issue Your DWM is incompatible with Aero Glass! See debug log for more details. Do you want to retry symbols downloading? [Retry] [Cancel] Regardsless of what I answer, Aero Glass immediately redisplays the same MessageBox, effectively making it almost impossible to be quick enough to type my login password for Windows. When I succeed, the desktop is shown for a two seconds, them I'm thrown back into the lock/login screen with the eternal MessageBox from Aero Glass about "Compatibility Issue". I need to use my computer! How can I get rid of these Aero Glass problems?