Hi Doc78 and thanks for the reply. I'm very new to this board but have already found a wealth of information. Unfortunately I get carried away navigating through all the forums and posts and lose track of where I was when I found the information relavent to me. I seem to remember seeing a message here that mentioned the fact that the batteries now only had 3-pins and gave information on how to make a small modification to bypass the issue. I'll have to search for it again as I've been unable to find any 4-pin batteries.