Hi Michael,
We can try to manually reset all your settings to see if that resolves the problem. To do this, put your SD card from your iFly into your computer. Using Explorer (or the mac equivilant), rename the \User folder to \UserBackup. Then put the card back in your iFly - does it work properly now in Portrait mode?
If yes...try rotating to portrait again and see if you still have a problem. If so, please contact our support desk for help.
Thanks,
Walter