After the latest windows auto update on the weekend 13.10.12. My windows live mail 2011 won't open. Just says "A problem caused the program to stop working correctly. Windows will close and notify you if a solution is available"

I am on windows 7 home premium and it was working fine the day before. Has anyone got any ideas with out uninstalling it and losing everything.

I have tried the auto repair option on program uninstall - it said it was successful but was not

Paul