Reinstalling Mail and getting everything back without too much hassle

[vashaun jones]

Listers I have a problem in Mail where I can't tab or shift tab  
between the messages and mailbox areas. I can VO right and left arrow  
to these sections, but tab doesn't work. I have tried two things that  
got me to the point where I think I need to reinstall Mail. One is  
that when I delete the com.apple.mail.plist file and open Mail I can  
tab and shift tab with no problems with the exception that there's no  
mail messages or mailboxes. I have also tried this tabbing sequence in  
another login on my system and all is well, so I know it's just my  
mail account. What I want to do is delete my current mail account or  
should I say instance of the Mail app, preserve the mailboxes and  
messages while correcting the issue of not being able to tab back and  
forth. What advice can any of you offer to accomplish this?