then it thinks it is still installed.
Find the Photoshop preferences and delete them and see if it makes a difference.
Failing that, contact Adobe and tell them of your problem
P
I tried following the manual on Adobe but when i try to reinstall it, it wouldn't let me choose Adobe Photoshop CS 2.
Can't i force reinstall or how to remove it properly?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic