[Zope] XMLRPC problems?

[Dennis Allison]

Zope 2.7.6, ZEO, 
Python 2.4.1 (yes, I know it is not yet official but ...
ZEO runs on the same machine but is accessed through an internal network
ZMYSQLDA 2.0.9
MySQL-1.1.7

I've seen a couple of problems attributable to XLRPC failures in our 
system after an upgrade to Zope 2.7.6.  Has anyone else experienced 
problems?   I know there were issues at one point, but I believed that 
they have been resolved.  I checked and found no active bugs.