new user to mac, and my question is in regards to the email. how can I increase the size of the email screen?.... the type is pretty small, and old eyes, don't work well together.... I have found to enlarge web pages is command and the + sign, and that works great, but it don't work with email other than opening up the body of the message. can assistance. someone at Best Buy indicated downloading Thunderbird and using it, that it is a better email client than the mac mail?... any thoughts?....tks from a new user. Dennis