Of course there was the impressive undefeated season (credit where it's due), but they've had some bizarre losses IMO:
2005: Colorado State, NM
2006: Wyoming, NM
2007: AF (at home), UNLV (27-0??!?)
2008: A close call against NM again (13-10 W)
2009-10: Pretty well took care of business
2011: Colorado
2012: I suppose they just lost where they should have and didn't disappoint