[MlMt] "Date Received" column width

[Randall Gellens]

The column width of "Date Received" keeps shrinking back to its default, 
which isn't wide enough to display some times, so it just shows the 
date. I manually enlarge it, but then at some point it's shrunk back 
again. Is there a way to get it to stick, or better, to have it 
automatically adjust?

It would also be nice to display just the time for messages received 
today.

--Randall