I downloaded Mac messenger earlier this week. I think Monday. On tuesday, my macbook was very very slow. When i typed, there was a lag. when i clicked on something like ichat, there was a delay. if i clicked on Finder, there would be a delay. I deleted Messenger and restarted the macbook and it was fine. I still want Messenger. Do you think Messneger caused that? if not, why did that happen? Thanks!