Since the last Windows Update I've not been able to apply new Windowblinds. The program appears to get busy, but then the skin remains the same, only on a reboot does the skin change.

Nothing has changed with my WB installation, so this must be to do with the last Windows update.

Your computer has a Windows Experience Index base score of 6
Your Windows Graphics Experience score is 6

WindowBlinds version : WindowBlinds 7.01 (build 234 - Windows 7 Edition) - 64 bit OS

WindowBlinds is installed correctly on this PC
WindowBlinds appears to be activated on this PC
(SyncMaster P2050(G)/P20500(G),Magic P2050G(Digital)) 1 is attached to ATI Radeon HD 4800 Series  

Wblind.dll         2009/12/10 16:58:20
Wblind64.dll         2009/12/10 16:58:46
Wbsrv.dll         2009/12/03 13:44:41
SevenConfig.exe         2009/12/03 13:43:22
Wbload.exe         2009/12/03 13:43:12
Wbhelp.dll         2009/10/07 20:35:07
Tray.dll              2009/10/21 14:13:19
Wbload.dll              2009/09/25 13:41:29
Screen.exe         2009/12/03 13:43:26