Here is a great article at Wiki How about How to Cat Proof Your Computer! Minx used to sit next to me at the desk and give me a wack with her paw for attention and food. She and Puffer would walk on my hubbie’s computer and I was afraid of disaster but he was okay with it.
This was an article at IGoogle and I have the How of the Day in my set up. This was the article for today and the pictures reminded me of living with a cat.
So far Ebony and Sneakers are good and don’t do this type of thing but just in case you have a cat who does you might want to give it a read through.