Shoutbox

Hi, i have recently noticed this bug on the tabbed conversations. Before i explain what it is heres what i'm using:

Windows Version: Windows XP, 5.01.2600
Messenger Client Version: 7.5.0306
Messenger Plus! Version: 3.60.0144 (Mess.be edition)

Now, the bug isn't really a big thing and i'm not really moaning about it but if you hover over the persons name in tabbed convo's it comes up last message then how long it's been since that person last talked to you. now the problem occurs there. hover over and watch it. it couunts up but not to 59seconds then 1 minute. it goes to 89 seconds then 1 minute

Like i said its not big but i'm just pointing it out