ps cs4 help

OK i don't know if anyone of you have this issue but everytime i make a new documents or open up a existing ps files, this weird black covered half of my work area.

http://img340.imageshack.us/img340/3...rrorcc6.th.jpghttp://img340.imageshack.us/images/thpix.gif
PS: my ps came with CS4 Master Collections

OK so i read online and PS CS4 is usingg gfx card for opengl thingy so, i think i have a bad gfx driver. i reinstall it and the error above has been fixed.