i have the same problem too..
WindowBlinds version : WindowBlinds 6.2 (build 61 x86)
WindowBlinds is installed correctly on this PC 
WindowBlinds appears to be activated on this PC
Your machine supports per pixel borders on WindowBlinds skins.
(Plug and Play Monitor) 1 is attached to Radeon X1550 Series  
Wblind.dll      2008/07/22 10:53:20
Wbsrv.dll      2008/07/22 10:53:10
Wbconfig.exe      2008/07/22 10:53:32
Wbload.exe      2008/04/26 16:14:14
Wbhelp.dll      2008/04/26 16:14:07
Wbui.dll      2008/04/26 16:14:05
Tray.dll           2008/04/26 16:14:21
Screen.exe      2008/07/15 11:31:09