[Samba] File corruption using samba

[Irfan.Syed at clubcorp.com]

Hello everyone,
      I am running Compaq/Dec Unix 4.0e with samba 2.0.0-beta1.  The shares
are being used for Lotus Domino 5.0, and every now and then we are getting
file I/O errors and the mail files are getting corrupted.  Has anyone seen
this before or knows where I can go to get some information on this
subject.  I guess I could upgrade to the latest version of samba but I'm
not sure if the latest version is supported on 4.0e of the OS.

Any help is greatly appreciated

Thanks
Irfan