Shoutbox

I have this same problem on my msn, every single time i log on it freezes after 2-3 seconds and ends up not responding. Ive uninstalled and reinstalled this 5 times +, ive repaired it, ive tried many different versions on msn incl 7, 8 and the new 2011 version is not compatible with my laptop. I am running windows XP, windows live messenger was working perfectly until yesterday. I tried Jamboms theory just before in Regedit, restarted computer and tried again but still no luck. Any other ideas?
I have done virus, malware, spyware and trojan scans with no results. this is so confusing!