This just happened as far as I know. Everything else is working just fine. I've restarted the program, restarted my computer, tried it on a different file, made sure the text tool was selected when I attempted this, etc. I have no idea what could be happening.
I hope I don't have to reinstall CS3 :(
x posted to graphicdesign
*edit* Reinstalled. Works now. But goddamn, I still dont know what caused it. I tried every trick I could think of. Must have been a glitch or I accidentally touched something. I think somehow I accidentally deleted my paragraph menu.