Starting at Field Day, my Flex 1500 has had problems with CW keying. Sometimes it won't key at all, sometimes it keys itself even without the key plugged in. I re-heated the connections on the plug tonight but that didn't make any difference. I think it's mechanical, it might be internal to the plug because I can sometimes put a little pressure on one side of the plug or the other and get it to either unkey or to let my keyer start working. I've reset the database and it's behaving the same on 2 different computers. I didn't get to use it at all at FD because it wouldn't key successfully. Does anybody have any ideas of what else I can check? I bought my first 1500 new but I got this 2nd one used and it looks like the key and headphone jacks are both a little bit corroded, that might be related.