Java claspath issue after upgrade from &.3 to 7.4

I have just completed an upgrade from 7.3 to 7.4

I downloaded the latest Cume, Groups and Hypers yesterday and applied after upgrade - so I am right up to date!

After the upgrade all my java jobs are failing with the error it can't find the class.

I noticed a parameter on the sbmjob command to copy the environment variables but I checked another system where everything works and this was set to *NO

When I log on my initial program sets the classpath and all my classes are in a separate directory /MYJAVA

We have many jobs submitted from a scheduler that worked fine at 7.3 but are now failing with the error that the class cannot be found at 7.4

I tried running one of the jobs interactively and it completed successfully, so the problem has to be related to jobs being submitted to batch and not finding the calsspath.

Has anyone come across this or has any suggestions ?

Thanks

Don