Stupid thing!

Ok, as you can tell from my title this is my problem. I've been able to create parts before in the assembly level. But now I can't. I had to reinstall the program for some reasons, and now it doesn't want to work. Here's the problem. I hit the
Create component button; I list the name and the rest of the stuff. I pick the surface where I want to create the part. It makes the parts transparent and that's where my problem is. I can't use any of the buttons. They are all color (except the ones you can't chose at all) but then when I click on the button, it un-clicks it self. I try to pick something else from the dropdown menu of the button but you can't and there all grayed out! I can't Project Geometry at all, I can't do anything, and it's frustrating me!
Can anyone out there help me?
