zcs 5.0.14 on ubuntu 8.04 with thawte certificate: can someone tell me what is attempting to happen during zmcertmgr deploycrt that gives this message:

** Saving server config key zimbraSSLCertificate...failed.
** Saving server config key zimbraSSLPrivateKey...failed.

i'm working with rogle and we've been fighting the whole commercial ssl/tls issues for a couple days. none of the solutions we've found on here seems to work. most of the steps say all is ok, then we restart everything and we get the:
network_biopair_interop: error writing 2108 bytes to the networ
k: Broken pipe

error. we've tried 15914 and 19702 and many other deriviatives there of! help!