I opened mail and tried to add a second gmail account. I did it through the accounts screen, to no avail, it authenticated then just doesn't show in my mailboxes pane. I then tried to add it in preferences in mail. It again authenticated but doesn't add it to the mail pane. Funny part is by adding it on my laptop (yosemite), it added it on my desktop through iCloud... so seems to be a glitch with mail on yosemite. Anyone else experience, and if so, resolve?