Hello, I recieved my Macbook this morning and am so far very pleased with it although just need a little bit of help. In messenger I've tried changing my profile picture by uploading a picture that I had in iphoto but it says it cant use that picture it needs to be a different format. The picture is a jpg. Also, when I click on the mail tab in messenger it consistently asks me for my MSN passwrod. If I click back after reading a message it also asks me to enter in my password again. Hope you can help me, am a complete mactop novice!