Thanks again Steve for your input.
So can I ask, in future if I have a load library which is in use and has say 20 Load modules in there, how can I update this load library with new load modules. Some of the new load modules will replace the existing ones while some are brand new. So there will be some existing ones which are redundant and not replaced but need to be deleted.
If I had a process for this task then I would follow it in future to avoid the issues I had originally.