samba - Aug 2011 - Samba read problem

I'm running Ubuntu server 11.04 and a recent update came down for Samba this
is causing some issues and I'm unable to figure it. We can connect to
shares, see file listings, and write files to samba just fine. The problem
comes when trying to copy and file down, especially a larger one (~90 MB).
It seems to try to start copying, but seems to sit forever on the Window
"Calculating..." cycle. If anyone can render assistance, that would be
great.

Thanks,
Chris