Reinstall it properly.
I have, streight from Adobe. followed it to the letter, three times. I plan on buying it but would like to get to know it first. Its ok until I want to close it to use other programs. It won't let me reopen it.
I assume this is CS6 and not the ancient PS6. If you have errors in install you really need to run the Adobe Script Cleaner before a reinstall. Also, you best chance of sucess is to take the default install and not to move files after the install.