Known Issues and Workarounds for Parallels Desktop with Leopard - Parallels Support ForumKnown Issues and Workarounds for Parallels Desktop with Leopard - Parallels Support Forum:
"With Parallels Support and QA teams working hard on investigating the current issues with Parallels Desktop and Leopard compatibility, we have prepared the comprehensive list of the known issues and workarounds for the current production builds of Parallels Desktop.
Please keep in mind that in some cases there is no sure fix for the issue and we can only tell what information we need to troubleshoot it further and fix in the next update. This list is based on your reports for Parallels Desktop build 5160 and 3214.
Our current Beta build already fixes some of the issues below, but its not recommended to install it for production purposes as it's not considered stable release version."