Broken TeamViewer tray icon?

I have "close to system tray" activated in my TeamViewer's options. Every once in a while the TV tray icon becomes unresponsive, so I have to kill the TV process in the task manager and restart TV if I want to use it. Once the tray icon has become unresponsive, killing the TV process and starting TV anew doesn't fix the icon though. The only way I can break this cycle is to reboot my computer: upon reboot, the icon behaves normally ... until, of course, something (dunno what) happens and the above cycle takes over.

Anybody else experiencing this behavior? (Running latest portable TV on a Win7 x64 machine.)