I am using the most current version, I also uninstalled and stepped back a couple versions just to see if that was it...same thing. I also tried it on many different trackers. I have heard, however, that it can be a glitch with the firmware in cable modem? Thanks.
[EDIT]-I was using version 3.3. I just installed a third party expiremental version that protects against locking up. So far it seems to be working very well. Get it at http://bt.degreez.net