All of a sudden Office communicator client stopped working. When I double click the program, I get an hour glass and then nothing happens. Communicator.exe is running as a task though. The more I try to run the program the more communicator.exe show up in task manager. I do not get any errors in the log files. I am running from a WIN XP SP3 machine. It used to work on my computer. Many other people have it installed and it works just fine.