It sounds like the items.000 file in the saved game folder became corrupt.
Do you have any previous saves that are ok? Does equipment show up with stats if you start a new game?
Try deleting all of the files in the '
..\Divine Divinity\Run\Dynamic' folder.
This folder is used as a cache for the game. Files are created / copied there from the save game folder when you load, and written / copied from that folder when you save a game. The files will be re-created as required the next time you start Divinity. If there was a corrupt file in that folder, deleting the files should fix the problem.
See;
Item stats not showing 
