I sometimes get a general protection fault in P3CC.DLL in P3.0 and P3.1 on different machines under Win XP SP3, when trying to display relationship lines in Gantt chart.
system requirements are not an issue. tried anything I could think of (accurate spacing of timescale density and row hight, proper selection of key bar and visible bars).
possibly related crashes of P3.exe and CORSRVR.dll when dragging activity end (increase duration) in Gantt, sliding Gantt vertically or no aparent reason.
seems to be a corrupt layout. problem spread through transferred backups of projects and associated layout.
I'm not very knowledgeable on the IT side of the house but we have had lots of error messages and crashes along the way using Primavera P3 as well as P6. In the end we have learned to accept the software's design flaws as well as our local network's shortcomings and just plow ahead and work around them.
problem boils down to a corrupt layout transfered along with project. deleted problem layout and all versions based on it.
i would recommend against transfering layouts with projects (checkmark) unless really necessary.