Angry Photoshop CS wont accept my drawing pad
 

Ok, my Adobe Photoshop CS gives me a error message that says that the application failed to initialize properly. Now i just bought a SummaSketch III, a drawing pad, and tried to install it. The file said that it was compatible with Windows XP. When i did all that stuff and restarted my cp, I tried to get into Photoshop CS. It says that it wont open and boots me out. Is SummaSketch II not compatable with PS CS? I deleted the software and PS CS works just fine. I dont know what to do. Any Ideas?