I recall reading that somebody complained about the new Camelbaks being (almost?) impossible to open.

We've had our Camelbak Rogues for a few weeks and the seal is tight, but not impossible. But this morning? I can't get EITHER of them open, and I want to take a ride. Waaah!

Has anybody ever had them "lock down" on them where they wouldn't open? What do you do?

(I did express water out of the tube in case it was a suction thing, but that didn't help.)

Help!