Nadzim:.... i suspect its the housing... as what redtail mentioned, i think i may did the same of opening up the housing without pulling up the jog dial clamp.
Redtail.... did you just RESET the camera or you send in the housing to Olympuss for them to look at?
Thanks all for your advice......
I noticed that it was unstable until I had the Olympus engineer on the phone (the support here in Japan is really top notch), he had me reset everything, power cycle and then when I was using the camera top-side I didn't see any problems (as you know its hard to simulate whats going on at 30meters pressure within the housing) but since I had about one month left on the warranty I decided to have the pros take a look at it. When it returned to me they noted that they didn't find anything particularily wrong with it but changed the jog dial unit - which I thought was a bit odd if they didn't find anything convincingly wrong, maybe it was a cover up of a known problem or they just figured I would be satisfied if they changed it). I didn't mention to Olympus that I was using the housing of course.
I was puzzled as to why it could have happened until I saw a thread posted that if you open the camera without lifting the jog dial it can affect it, then I thought....oops think that's what I did.
good luck mate.