Win 7 has stopped skinning the window widgets.  I no longer have borders, menu bars, or close/open icons surrounding program windows.  Program Titles and icons still remain visible and all functions including close/open commands and resize arrow are still working.  Impulse maintains its windowing.  This happened on my desktop just recently (would installing the beta of Spiriform's Specce make any difference?).  No change in skin or unloading/reloading/rebooting will alleviate the effect.  Have to revert to Aero to use the operating system.
 
Your computer has a Windows Experience Index base score of 5.6
Your Windows Graphics Experience score is 6.7
WindowBlinds version : WindowBlinds 7.0 (build 228 - Windows 7 Edition) - 64 bit OS
WindowBlinds is installed correctly on this PC 
WindowBlinds appears to be activated on this PC
(Generic PnP Monitor) 1 is attached to NVIDIA GeForce 8800 GTS
Wblind.dll      2009/10/29 12:32:20
Wblind64.dll      2009/10/29 12:32:19
Wbsrv.dll      2009/11/04 09:22:58
SevenConfig.exe      2009/11/04 15:15:08
Wbload.exe      2009/10/22 06:40:12
Wbhelp.dll      2009/10/07 14:35:07
Tray.dll           2009/10/21 08:13:19
Wbload.dll           2009/09/29 10:20:26
Screen.exe      2009/11/04 09:22:01