yes this happens to me all the time! Sometimes it is both the network and the volume icon (i think), but mostly its just the network icon that is not clickable. workaround: click on the clock (or other indicator icon) and move mouse to the left to open the network menu. I have to do this all the time. I have a DELL Latitude D630. Let me know if you need any more details.
lspci 01:00.0 VGA compatible controller: nVidia Corporation G86M [Quadro NVS 135M] (rev a1) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/779638 Title: Ubuntu 11.04. Unity-desktop upper bar menu, has some bugs with ASUS Geforce GT220 video card To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/779638/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs