Shoutbox

I am using Windows Live Messenger 2009 Beta, and I've downloaded the Messenger Plus for it. It's working fine apart from my chat logs. They're still there in the folder I used to save them in, but they aren't updating for some reason... I've made sure they're enabled. I tried disabling them and then enabling again. I also tried changing the location they're saved in... but it didn't help. I checked with a couple of friends, and they seem to be having the same problem.
Could someone please help or offer advice?
Thanks :}