Hello Devers,
I have found a strange problem with openpanel on OSX and linux. If I open a file with a long name, including the whole directory, then it gets cropped at around 80 characters (maybe 78 or 79). I have tested this on a debian 0.40 install and the latest OSX extended. I cannot see where this 80 character restriction might come from - looking at the source there seems to be no place that it is mentioned within the PD code.
I hope someone can help. It does not seem to be a problem with symbol lengths.
Cheers,
tim