Hello there rader4,
I would suggest resetting your iPod to see if that fixes the screen brightness.
From the article named How to reset iPod found here http://support.apple.com/kb/ht1320.
Press and hold the Sleep/Wake button and Volume Down button simultaneously for at least eight seconds or until the Apple logo appears. You may need to repeat this step.
If the above step did not work, try connecting iPod to a power adapter and plug the power adapter into an electrical outlet, or connect iPod to your computer. Make sure the computer is turned on and isn't set to go to sleep. Try resetting the iPod while it is connected to power.
If that resolves the issue, then take a look at this argicle for the red circle with the dash through it:
iPod Displays a Red "X" Icon