What do you get from $^E
I don't know (yet). I already thought to output this value too, but I can't do any changes to the application during the next couple of weeks, so this has to wait.

I thought maybe the effect I'm experiencing might be well known already, so someone could already have a good guess what's going wrong. I now understand that this error code is far too general, to reasonably diagnose the problem....

-- 
Ronald Fischer <ynnor@mm.st>

In reply to Re^2: Spurious "Invalid Argument" on file open by rovf
in thread Spurious "Invalid Argument" on file open by rovf

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