I just updated steam, ending with a message that there was an error with the update. Then after i started the game, I can't load my save because of a message that the game is rnning dangerously low on memory. I have plenty of memory on all my hard drives. I have plenty of RAM memory free - only 35% are in use. I deleted some old saved games but it still gives me the same message. Also, i have no problems loading my other saved games. What should i do now? can I restore the previous version of steam that worked perfectly well