Networked Drive & File Corruption

At my work, we have artists developing stuff in Flash. We would like to be able to have them work against files saved on a shared, networked drive (which is regularly backed up). For whatever reason, if they do this, ever so often a file will be corrupted (this seems to happen when Flash Pro CS5 saves out). If they work against files that they have saved on their local HDD, the files are never corrupted. None of us have had this problem working on files with any other application (Word, Excel, etc.)

I’m fairly sure, but not certain, that the machine which is hosting our files is a Windows server.

I’m not sure what would cause a file to be corrupted like this, but if anyone does have an idea, is there any better networked drive solutions that would be likely to solve the issue?