Would you post the information requested in comment #2, please.
Here's the System Info you requested:
Your computer has a Windows Experience Index base score of 2
Your Windows Graphics Experience score is 2.4
WindowBlinds version : WindowBlinds 6.3 (build 112 x86 - Vista Edition)
WindowBlinds is installed correctly on this PC
WindowBlinds appears to be activated on this PC
(Generic PnP Monitor) 1 is attached to ATI Radeon Xpress Series
Wblind.dll 2008/11/06 12:22:20
Wbsrv.dll 2008/09/16 07:44:22
Wbconfig.exe 2008/11/18 17:15:54
Wbload.exe 2008/04/26 15:14:14
Wbhelp.dll 2008/04/26 15:14:07
Tray.dll 2008/04/26 15:14:21
Wbload.dll 2008/04/26 15:14:28
Screen.exe 2008/07/15 10:31:09