Question on CDR between 7.31 and 7.24 on HP.

Has anyone had any experience or problems using CDR to replicate between 7.24 and 7.31 in a production environment. I have found a problem with replicates being defined on the 7.31 instance causing the 7.31 instance to crash when 7.24 replies to the definition but defining the replicates on the 7.24 instance works, they start and replicate successfully between 7.31/7.24. I was planning to upgrad several servers to 7.31 one at a time but it looks like it will have to be done all at once. :( Using 7.31FC4-1 HP-UX 11.00 and 7.24UC9B on HP-UX 10.20 Thanks, James