Hello to all my Mac friends. My name is Paula and I currently use an Ipad, Macbook Pro, and and Ipod Touch 2nd Gen. I am having the worst problem though that no one at apple will help me with rendering my ipad useless. The app store keeps rejecting every credit card I enter and writes "invalid security code" even though I put in the correct one. I have tried several cc's and the billing addy is correct. Now I can't load even free apps. Any suggestions?????