David,
I posted a similar situation in another thread. I only have 71 EQM and the same thing happened (I do have 105 total miles from other sources though). Did you get the 1K card in the mail yet, and if so, what is the expiratio? Mine is Feb of 2009, when the program would indicate it should be Feb of 2010. I'm thinking maybe we got credited for a lot of early 08 travel as suggested by others, but only have the status until Feb of 09, unless we actually get the 100K EQM in 2008????
I'm speculating of course and don't really want to call to get clarification from anyone with united....