[BUG] : in balsa-index (I think)

[Emmanuel <e allaud wanadoo fr>]

	Hi all,
Am I the only one seeing this : when I have just opened a mailbox 
(probably with newly retrieved mails), the last one is selected, then if I 
click on another message holding shift to select several messages, I get a 
wrong selection : it begins from the FIRST message to the one I click on. 
So whereas the last message was actually selected on the screen it was not 
logically, there is an incoherency between on-screen and in-memory datas.

Bye
Manu