Where the hell did this 'must have numbers' BS come from, anyway? Because it's entirely not true. My ID does not contain a number, and neither did the IDs I regged for anybody else back in the day, and this nonsense has been floating around since then.
Yes. This is untrue. I should know. I wrote the sticky.
Make sure you check over everything that Ian said. Also, be very sure to double check your address to make sure that the << and >> are removed from around it (they're in the example to show it's the example), as it will cause it to hit an error. If none of this helps, post again.