Sign in problems

I downloaded the Norton security app from the Google market & installed it on my galaxy s3. When prompted to register my device with my Norton account, I tried to do so but I am getting a login error that either my password or email is incorrect. I have verified it with my account data on my computer, but am still unable to link the account. Any suggestions?

I downloaded the Norton security app from the Google market & installed it on my galaxy s3. When prompted to register my device with my Norton account, I tried to do so but I am getting a login error that either my password or email is incorrect. I have verified it with my account data on my computer, but am still unable to link the account. Any suggestions?