I'm a novice when it comes to computer drivers, cables, etc. and need some help. I have a Kodak 3400 digital camera, just took a bunch of pictures. Went into my Photo software and clicked on Edit, Twain Acquire. I get a little box that states "Invalid Class String". When I click OK (no other choice), it goes back to my main page Photo page. The camera is connected. I went to the Kodak webpage and downloaded the updated software. I don't know what a Twain is and I don't know what/where my drivers are. Any help is greatly appreciated!