[CentOS] centos-5.5 VS Firefox 3.6.12

My firefox auto-installed an update from 3.6.11 to 3.6.12 this morning,
after which it gives this upon a restart attempt:

Program received signal SIGBUS, Bus error.
0x00123c47 in memset () from /lib/ld-linux.so.2

while I dig deeper, wondering if anyone else has seen it and/or can suggest 
a fix.

Thanks!

-- 
---- Fred Smith -- fredex at fcshome.stoneham.ma.us -----------------------------
                       I can do all things through Christ 
                              who strengthens me.
------------------------------ Philippians 4:13 -------------------------------