Hi, I have a Powerbook 12", OS X. Suddenly my Mail program is unresponsive, after having worked fine previously. I have Mail and Safari opened. When I click on Mail from the bottom icon bar, the Mail panel appears along the top of my screen, but not the Mail window. When I click on Mail, Quit Mail, nothing happens. I'm able to get to my mail by clicking on the right side of the bottom panel (next to the trash can), or by clicking on File, New Viewer Window, but other than that, Mail seems to be "stuck." Any ideas? Thanks!