I am having trouble using Caesar v5.3 from my home on the office desktop using a remote desktop connection. This wasn't an issue with v5.2, or earlier. Have there been some changes in the security? Is there a workaround? I work from home often, and this may force me to go into the office, which I am not interested in doing.

Hmmm - sort of, Version 5.30 now also supports Intergraph's SPLM licensing system. This could be your problem because the original 5.30 always checked for SPLM first.

This has been changed in the recent "build" (Service Pack), but to fully take advantage of the change I believe you're going to have to uninstall and reinstall the software from the new DVD (dated 110228). I don't believe this DVD is available at this moment, since "Production" only received this "build" yesterday.

Any word on the service pack release?

It is available from http://www.coade.com - in the downloads section.