Slow desktop refresh in coherence With Parallels 6 and WinXP SP3 fully patched

I find the desktop and mounted drive performance dismal currently...although it's faster now that what I had before using a VM created through Transporter.

I find that files renamed, or moved in various windows, desktop included (within explorer - NOT Mac Finder) do not show up as updated until I select the window in question and hit "F5".

Any ideas?

I have all Mac-Windows and Windows-Mac integration enabled, and the Windows VM is accessing roughly a dozen Novell Netware drive mappings over gigabit LAN.

JB