Sorry if the post is not relevant, but we have the very same problem here.
My camera is (according to lsusb):
ID 046d:0990 Logitech, Inc. QuickCam Pro 9000
The errors are:
dlopen: ./utils/linux/capture/libng/plugins/conv-mjpeg.so: undefined symbol:
ng_debug
dlopen: ./utils/linux/capture/libng/p
It happened when I opened LibreOffice from Chromium. (i.e.) I clicked on a doc
file when brownsing a web page using Chromium.
Running Precise 12.04 fully updated today (05/march/2012)
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ht
*** This bug is a duplicate of bug 911371 ***
https://bugs.launchpad.net/bugs/911371
Nothing more to say
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https://bugs.launchpad.net/bugs/912430
Title:
lpstat crashed with SIGSEGV
No comment at all. Computer was calculating and alone. I was not present
when applet crashed.
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https://bugs.launchpad.net/bugs/725335
Title:
indicator-applet-complete crashed with SIGSE