Several years ago I bought a Photoshop program on ebay and had it loaded on my other computer. I hadn't bothered loading it on this one because I am rather impaired about playing with photos. Yesterday I decided I'd give it a shot and it won't accept the Serial # that came with the CD and did work before. I did check my typing many times, re-entered it and even asked my husband to check it last night. Any ideas? Thanks!