corrupt saves with 1.58 and BM 1.11

Hi, I posted this in tech support, but nobody seemed to notice,so I apologize for repeating but I need some insight here. It seems that my save game, (only using one save) suddenly corrupted or something. When I try to load I get a hang, and then when finished the game goes white screen, (can still hear theme music) and then an access violation occurs;"cannot create file c:\Program Files\Strategy First Malfador Machinations\Space Empires V\temp_1.dat" I'm playing 1.58, started game in balance mod 1.10 then updated to 1.11 and continued playing no problem, then this! Can someone please advise thanks.