All was working fine.

We edited the "jumps" on the local machine: after this, windows administrators can run up myriad ok, but windows users get a "runtime error 0" when loading myriad (the only solution is to then run up Task manager & kill it off)

The problem is that when the file c:\Documents andSettings\Application Data\PSquared\Myriad v3\Profiles\Profile1\localjumps.jm3 gets written, as a result of adjusting the jumps, Myriad sets the permissions incorrectly on this file. (the fix is to re-set the file permissions to give "domain users" full rights).

This single problem has wasted us HOURS, until we worked out the issue. It almost stopped us doing shows this week.

The wierd thing is that it's only an issue on SOME machines, not all....