Nee, hab aber jetzt über die ADOBE Forums-Seite Hilfe
Photoshop tools act strangely, as if a modifier key was held down all the time: you can only draw straight lines, you sample colors rather than paint/fill, the cursor has a + sign, etc.
AND: You are running Mac Os 10.6.5 or 10.6.6.
Solution: Apple made a change in one of its APIs that affects other programs (Photoshop does not use it), and the result is that they interfere with Photoshop, that receives information that modifier keys (CTRL, Command, Option, Shift) are pressed, when they are not. http://www.bache.name/...0keyboard%20hack.dmg