Wireless and File Corruption

Reposting:

From time to time, I get this error message, 'more data is available', when
trying to access a network folder. When this happens, the folder is
unreadable from my wireless connection. I read somewhere on the MS website
that this problem is addressed with SP2 for XP. Well, I have SP2 installed
and the problem persists. Any ideas how to repair? I've tried unmapping,
remapping and even renaming the shared folder.

I think this is related to some file corruption that happens only when I use
wireless. Is there a setting to correct this?

Thanks.
Fred