I can confirm what Tim is seeing. I tried his skin, and Stealth OS and they both do it. the text, icon, and buttons on the titlebar flicker. It does not matter what you are doing or how many windows you have open. I tried it on Vista and Windows 7 and it happens on both.
I checked it with my newest skin (not published yet), and it does not do it...however, my skin has a text background, the other 2 do not. I don't know if that makes the difference or not, but it might be helpful.
Your computer has a Windows Experience Index base score of 4
Your Windows Graphics Experience score is 4
WindowBlinds version : WindowBlinds 7.1 (build 263 - Windows 7 Edition)
WindowBlinds is installed correctly on this PC
WindowBlinds appears to be activated on this PC
(HP w1907 Wide LCD Monitor) 1 is attached to NVIDIA GeForce 8400
Wblind.dll 2010/04/22 15:15:20
Wbsrv.dll 2010/04/01 11:43:30
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 2010/04/01 11:43:28
Screen.exe 2009/12/03 14:43:26