Well, as the topic says, my shortcuts aren't working in Photoshop >_<. Like when I do a Filter > Render > Difference Clouds, and then want to repeat it, normally I could press Ctrl F. But I can't do Ctrl F, I have to re-do Filter > Render > Difference Clouds. Not even the command to merge my layers down (Ctrl E) wont work, neither does Hue/Saturation. Pretty much none of them work. Do you guys think I should just re-install Photoshop or is there a patch or something that could help? I'm using Adobe Photoshop CS.