I believe you are using JBM 1.3.0?
There have been many fixes in clustering since then, I suggest you try out 1.4.0.CR2 and report back if your problem still occurs.
I'll try but I'm not so sure it's clustering related issue
I'm currently trying to check if this problem will take place in single node config also
Are you still having problems with this? I'd like to close the task...
After changing to Messaging 1.4.0.GA there is no problem. After database reconnection old JMS messages are correctly taken