When I create a simple curve patch,  I can't seem to change the texture. It is stuck at being white. When I click off of it, it is just black lines. I don't know what I did. I could make patches before.

check for a depressed button on the tool bar at the top of radiant. You probably accidentally toggled a hot key, which has set patches to display differently

check for a depressed button on the tool bar at the top of radiant. You probably accidentally toggled a hot key, which has set patches to display differently

Those damn depressed buttons trying to screw things up - cheer up! 

Thanks! Well now I messed up the controls. Instead of moving with right click, I move the camera.