I've trying to run L3 3.0g under Win 7 64 bit (English) installed in my Bootcamp partition under Parallels 5. After trying to open a number of resources, suddenly all resource (child) windows inside the main application window disappeared!!! Suspecting that the error happened because of insufficient memory (I realized later that Parallels 5 only allocated 1GB RAM to the VM), I shut down the app and windows, and gave Win 4GB RAM and 2 cores, restarted the windows and L3 again.
The app started with no child window (resources) open, which was expected because I asked L3 to open last workspaces, but then those resources that were there before the chihld window disappeared (such as the BHS-SESB, HALOT, NET Bible) cannot be opened from the Library anymore. Nothing happens when I tried to open them. I tried to redownload the resources but that didn't make a difference.
I didn't seem to have the problem under Win 7 32 bit (Chinese) under the same Parallels 5 - trouble is I accidentally deleted my Windows from my home directory and had to reinstall everything again. 
My config - iMac 2.8 GHz Intel Core i7 8GB/ 1.5TB (OSX 10.6.2)/ 500GB (Win 7 64 bit English Ultimate)/ Parallels 5 (build 5.0.9310).
I wonder if this could be an issue with Win 7 64 bit and L3 3.0g and how should I go about this problem? If possible I wouldn't like to reinstall L3 again - it took me over 3 hours to install them all (discs and downloads and updates and so on)! Many thanks in advance for all suggestions. 