Mac Mail migrating data freezes computer
I just installing Lion 10.7.5 from Snow Leopard 10.6.8 all fine except when I click on MAIL it freezes the whole computer (ie: can only move the mouse nothing else) and the screen says: "migrating data..." + a small amount of blue on the progress bar.
Tried resarting etc but freezes at the same point. Disk utlity shows the mac drive is fine- no errors etc and I have done a PRAM reset etc etc.
Any ideas?
Mac OS X (10.7.5)