I also have the problem with quake closing at run time since performing the update. I decided to look into this a little further and discoverd the following information when running from terminal:

sys_loaddll (/home/user/baseq3/baseq3/uiarm.so) failed : "/home/user/baseq3/baseq3/uiarm.so: cannot open shared object file: no such file or directory"

Failed to load dll, looking for qvm.
loading vm file vm/ui.qvm...
Architecture doesn't have a bytecode compiler, usnig interpreter
ui loaded in 1740352 bytes on the hunk
----cl_shutdown----
closing sdl audio device..
sdl audio device shut down.
re_shutdown (1)
segmentation fault

Im still a linux noob (but learning) so if anyone can interpret this it would be appreciated.

Thanks.