Recent upgrade killed matlab

[Micha Feigin <michf@post.tau.ac.il>]

Recent upgrades of sid killed matlab 7 (sp2) for me. When I try to start it
with the jvm active (gui) I get the error:

MATLAB: xcb_xlib.c:50: xcb_xlib_unlock: Assertion `c->xlib.lock' failed.
Aborted

Any idea what this is, is it solvable and whether it is a common problem or
only me ?

Thanks