Tools are acting evil

For some reason my tools refuse to work when they worked just fine a few minutes ago. Instead when I try to use something like the paint bucket, the little paint bucket cursor icon isn't there when I put it over the image. Instead it's the stupid hand shaped cursor that does nothing, and it does the same for ALL of my tools. I tried resetting PS, but it doesn't seem to want to work (unless I'm hitting the wrong keys when the splash page is loading). Restarting the program and computer is of no use. Help?

I use PS7.

Edit: It's magically working again. Thanks to those who tried to help.