Deskscapes wont start

Hi. I have a little problem. After I installed/upgraded Deskscapes 3.0 it wont work anymore. Impulse dosnt start at startup anymore and wenn I start Deskscapes over Impulse I cant choose any backrounds. Wenn I press "Apply changes" I get a message saying "Deskscapes does not appear to have been installed correctly". Wenn I press ok nothing happens. Another thing thats wierd is

Your computer has a Windows Experience Index base score of 5.9
Your Windows Graphics Experience score is 7.1

DeskScapes appears to be activated on this PC
DeskScapes engine does not appear to be running                        <----------------------------------------
(PnP-Monitor (Standard)) 1 is attached to NVIDIA GeForce GTX 260

Deskscape.dll               2009/11/11 13:21:46
Deskscapes.dll                2009/11/03 18:56:35
DreamControl32.dll              2009/11/09 09:43:17
DeskscapesConfig.exe               2009/11/11 13:21:22
UI\Deskscape.dll             2009/11/11 13:21:12
UI\DeskscapesVideo.dll      2009/10/24 18:04:54
DreamTasks.exe                2009/11/09 22:10:57
DeskscapesVideo.dll           2008/02/15 22:10:44

Can someone please help. Thx