I am close to pulling my hair out. My copy of PS7 won't work. No matter what I try. It had been working oddly for quite some time now, but now it won't start at all. I reinstalled, nothing workds. I get the loading ... whatever, and then it just closes. I defragmented my comp, deleted all spyware and cookies. Anyone who can help me here?

Edit : re-installed everything on comp, reinstalled PS and it works like a charm. Thanks for the advice.