[CentOS] bluetooth mystery

After using a bluetooth mouse for a couple of weeks on:

[root at rwells-cts ~]# uname -a
Linux rwells-cts 2.6.18-128.7.1.el5.centos.plus #1 SMP Mon Aug 24 
10:03:38 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux

the machine is a Lenovo laptop, X200

today after booting (and re-booting) not even the bluetooth led lights 
up (it did so immediately after installing CentOS),
there is no bluetooth icon on the gnome task panel hcitool finds nothing,
re-installing gnome-bluetooth has no effect, etc.....

Any ideas on what to do next will be appreciated.

thanks,

-- 
Roger Wells, P.E.
SAIC
221 Third St
Newport, RI 02840
401-847-4210 (voice)
401-849-1585 (fax)
roger.k.wells at saic.com