My contacts aren't online (WLM 2011)

And still, they are on another computer. I can't figure what the **** is this shit. I've search on google for a long time and I haven't found any similar problems as mine.

So, here's the situation : I do have two computers who had run WLM 2011 beta version. On of them, my laptop, wasn't able to connect at all, I wierd error code showed up. This error code was related to the internet explorer settings, wich I tried to change, but without any result.

Right now, the final version of WLM 2011 is installed, both seams to working, except then... I've just figured out that no contacts are online on my laptop and when I try to send a message to one of them, the following error is printed : The following message could not be delivered to all recipients: My message. On the other machine, everything is cool, I can talk to all my contacts, even my facebook contacts, that's cool.

Please see 1 and 2 dot png to see what it does exactly. On each pictures, we see in our left the WLM from one of my computer, where it's working. On our right, it is the version installed on my laptop, wich doesn't work. As you can see, I STILL can receive messages from my contacts, but I can't send them a message or see them online on my laptop.

Well guys, thank for the upcoming help! :)
Dave

Oh BTW, as you can see, I'm a french from Quebec, if there's something you don't understand, please let me know!

Hi,
Can you tell me what I must exactly delete from the registry? Is there's something else I must delete? Like I don't know, some temporary files in AppData or something else?

Thanks for your help!
Dave