With several people in my office answering phones, I run into this problem way too much. When I click to answer the phone at the same time as a co-worker does, the software will lock up. The call isn't dropped, because the co-worker receives the call. Everytime it locks up, I am not able to re-open the program until I reboot my computer. This is extrememly annoying! Here are some sytem details. Please help. Windows XP SP3 Plantronic Voyager 520 Headset My co-workers are using Polycom Soundpoint IP 550 Phones.