Device freezes when disconnecting ActiveSync cable

[bigdoftn]

I have a Treo 700wx with Sprint. I have ActiveSync 4.5 installed. I can plug in and synchronize with no trouble at all on 2 different PCs. However, in the last month it seems that every time I disconnect the cable the phone freezes. Sometimes it freezes as it sounds the tone for disconnecting the cable and the tone will be stuck for the duration of the freeze (typically 45-60 seconds). On occasion it stays frozen and I have to reset the device. If I get a phone call while connected to the cable, I can answer it as long as I don't unplug the cable. If I unplug it the phone continues to ring but I can't get any of the buttons to respond. I've read similar posts involving ActiveSync and bad 3rd party software but the onliy things I've installed is the MS DST patch and MS LiveSearch. I've uninstalled both and still have the same results. The other key difference is my synchronizations are working, it is just the disconnecting that is causing the problem. Any ideas? Thanks.