#1 - Feb. 22, 2012, 9:32 p.m.
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Well now I feel stupid...
I just fixed my problem. Here's what I did:
This is what my login screen looked like when I opened the game
http://i.imgur.com/p31TG.jpg
Notice how the e-mail was centered. I was curious and figured I'd try typing in some random e-mail or something to see if I gt the same error, but when I highlighted it...
http://i.imgur.com/tQR8x.jpg
I noticed there were a bunch of spaces before my e-mail. "Hmm. Odd," I thought. I removed the spaces, like so:
http://i.imgur.com/AUCS0.jpg
And now I can log in just fine.
Considering there were a few people out there who said they had tried using different e-mails, I don't expect this to work for them, but if you're having this error and haven't changed your e-mail field at all yet, try highlighting the e-mail area and remove any extra spaces there may be.
Additional info that seems relevant to the situation:
North American Account
E-mail address has been the same since the account was created
Password used is about 6 months old