I have found that if I move the task bar to the left side of the screen WB 7.01 will cause Explore.exe to crash with most themes.  If the taskbar is unlocked it will place the taskbar back at the bottom.  Otherwise Explorer.exe will crash a few times and then be ok.  This happens with some included themes as well as downloaded ones. 

There are some other odd crashes with WB but they are harder to duplicate and may just be because of the 64bit OS.  A full 64 bit edition would be nice some of the DLLs are already 64bit but SevenConfig.exe isn't.

Your computer has a Windows Experience Index base score of
Your Windows Graphics Experience score is 7.9

WindowBlinds version : WindowBlinds 7.01 (build 247 - Windows 7 Edition) - 64 bit OS

WindowBlinds is installed correctly on this PC
WindowBlinds appears to be activated on this PC
(HP w2207 Wide LCD Monitor) 1 is attached to NVIDIA GeForce GTX 260

Wblind.dll         2010/02/15 15:09:20
Wblind64.dll         2010/02/15 15:09:05
Wbsrv.dll         2009/12/03 14:44:41
SevenConfig.exe         2010/02/15 15:09:57
Wbload.exe         2010/02/02 15:33:18
Wbhelp.dll         2009/10/07 16:35:07
Tray.dll              2009/10/21 10:13:19
Wbload.dll              2009/09/25 09:41:28
Screen.exe         2009/12/03 14:43:26