I am having the exact same problem on Vista Home Premium. Today is day one of the trial.
Your computer has a Windows Experience Index base score of 5.7
Your Windows Graphics Experience score is 5.9
Version is DeskScapes Trial
DeskScapes engine appears to be running
(Generic PnP Monitor) 1 is attached to ATI Radeon HD 4800 Series
(Generic PnP Monitor) 2 is attached to ATI Radeon HD 4800 Series
Deskscape.dll 2010/06/26 12:30:52
Deskscapes.dll 2009/11/03 13:56:06
DreamControl32.dll 2010/06/15 13:40:42
DeskscapesConfig.exe 2010/06/15 13:40:11
UI\Deskscape.dll 2010/06/15 13:40:24
UI\DeskscapesVideo.dll 2009/10/24 13:04:54
DreamTasks.exe 2009/11/11 13:27:57
DeskscapesVideo.dll 2010/01/19 18:02:55