Macbook Air, sometimes can't see mail body text, just headers
More and more frequently when I open an email I can only see the header, there is not body.
I restart the computer and mail works fine and I can see the body text, i.e. the content of the email.
After a certain time, and it seems like each time mail lasts less time before "breaking", I can't see the mail content again..... so I restart again and all is fine.
MacBook Air, Mac OS X (10.7.3)