Samba Dropping Mounts - "Broken Pipe" msgs

[auto852 at hushmail.com]

I am running the latest release of Samba....
consisting of the following rpm's
-samba-2.0.7-4.i386.rpm
-samba-client-2.0.7-4.i386.rpm
-samba-common-2.0.7-4.i386.rpm
Has anyone experienced Samba dropping mounts? (NT shares).
I am only concerned with accessing my NT Shares, (not the other way around)...
and Samba keeps dropping the mounts/shares.
I can mount the shares...and access the shares....over and over without 
any problem....but after a completely random amount of time Samba decides 
to drop some or all of the mounts and I get "broken pipe" messages when 
attempting to access them. I unmount all the shares (because not all of 
the mounts drop at the same time) and I remount them and everything works 
again. But after an undetermined amount of time Samba just drops them again 
and I have to remount them again. Does anyone know of a fix to this problem 
(with the latest version)?