[OM] B lock problem on OM2

[Gilles Grosgurin]

I'm new to this list and I need a little help.  I owned an OM2 for about 2 
years and I use it mainly for astrophotography.  Last night after packing up 
for the night I was unable to unlock the B LOCK button, it seems as it was 
stuck in B setting.  Only after removing the lens I was finally able to release 
the B lock.  I was only able to duplicate this problem once again after 
numerous tries. I'm a little concerned.  Any idea about what's happening?

Gilles