I have for a long time had P5 and P4 living quite happily together on the same drive, with linkage between the libraries. However, just recently my boot disk started to die and I had to rapidly shift everything onto a new disk. Now I find that if I try to reopen a PZ3 file done in P5 it tries to load into P4 and hangs up the machine. I would appreciate it if someone could tell me what is fouled up here. Thanks in advance. Regards, David