> But as I understand your reply to my posts you said that files > created with the 20050609 snapshot cannot be loaded with 20050609 > and to load files created with the snapshot I need a version newer > than the snapshot.
No, I said to load newer files you'll need a newer version of pcb. Snapshots aren't the only versions of pcb; there is CVS too, and HID. Your problem is most likely that you're seeing the new DRC parameters, which are *not* in 20050609, but in CVS. 20050609 should have DRC lines like this: DRC[699 400 800 800] But newer PCB's have DRC lines like this: DRC[699 400 800 800 600 750] So while 20050609 is the most recent snapshot, it is NOT the latest version of PCB, and there may be files for which 20050609 is too old to read. However, you shouldn't be able to create those types of files with 20050609.
