Opening a project, and/or file handling within a project, such as [Save As] on a single file within a project requires 3-4 minutes of processing time. The same task performed on the same file accessed outside of the project is performed instantly. I have done all the uninstall/reinstall with reboots on both ends, exceptions in the firewalls, install with antivirus off, etc. No change in the behavior. I have looked at process memory use during these tasks. Only CC is using the CPU and memory to any appreciable extent.

I am using Windows Vista Premium Home OS. CPU = AMD Turion64 x2. Nvidia and the usual suspects. Nothing non-standard or exotic.