brenden?
i have encountered the same problem in our office. we are also running on a mac system (some starmax 3000 w/os8.6 & g4's w/ os9) with an apple server. we have noticed that the problem tends to occur in files that have been translated from minicad7, or have parts that have been carried over from mc7 (i.e. symbols, details, etc.) other than that bit of info i do not have any solution except we try to avoid reusing the corrupted data.
?adrien