I'm trying to synchronize my folders, and LR4 is consistently crashing when it attempts to display the "Import Results" window. This is on Win7 Pro, using LR4 64-bit. A portion of the pix being imported are successfully stored in the catalog, and the remainder are not. When I restart LR and attempt to synchronize again, the process repeats: find the new pictures (the ones that weren't stored in the previous attempt), start importing them, reach apparent 100%, start to display "Import Results" window and immediately crash.
I'd like to reach the point at which no pix remain to be imported. Suggestions?