Has anyone run into problems with their passport not being read? I have a relatively new passport (just over 1 year old) and the past two times I've tried to use GE (at LAX and IAH) the machine would not pick up my passport at all. I sat there sliding it around, wiggling it, etc and the GE machine did nothing. I saw another pax use the same machine and it appeared to work...I can't pick out any damage to my passport and its worked in the past.

Any suggestions? I'm thinking that I might swing by a GE office next time I'm in an airport with an office and see if they can test it out.