Must be the max_allowed_packet issue mentioned in an earlier post "MySQL folder caching". Try to set the max_allowed_packet parameter for your MySQL db up to about 10 or 20 megs. http://dev.mysql.com/doc/refman/5.0/en/packet-too-large.html

Thomas

Kevin Willock wrote:

What is the maximum size that this app can open? I keep getting timeouts on mailboxes > 50megs (or it loads but just a white screen appears)

Any thoughts? rc is running on the same machine as the mail server.

-k