Updated software and mail doesn't work
So as usual, I updated the software on My mac and laptop... it is version 10,6.8 and now my mail applications Version: 4.6 won't open. Says it is the wrong version to work with the software... this is the FIRST time I am unhappy with my Apple products. Now to take the time to figure this out. I know enough to be technologically dumb. Help
This is on both my desktop and laptop
MacBookPro, IMac