[X4U] Apple Mail Program not updating incoming message number

[Jens Selvig]

Sometimes Apple's Mail program doesn't display the number of unread  
messages in the Mail dock icon. This seems  to be an intermittent  
problem where it works once in a while but usually doesn't show that  
there are any new messages waiting most of the times when there  
really are some emails unread. The icon seems to be updated if I go  
into the Mail app.

This is under OS 10.4.7 on an G4 iMac. The mail program is checking  
for new email ever minute. The dock is being hidden with the auto  
show feature set.

There are less than 100 emails in the application so I am thinking it  
can't be an overloading of the programs resources!

Any ideas?

Jens