Jessetfan...I will try this and see if it works...it is the strangest thing! I mean, although I am new to knitting, I can usually tell what the basic problem is even if I haven't a clue how to fix it without a book or video or friend's help!
Huskies...that is a possibility too, I suppose. I'll check it out.
Last night I was so cranky about this...things were going along great and then wham - a problem. Kind of like life, I guess. You can sit and whine about it or try to problem-solve. I figure the worst-case is that I have to backtrack - I still have more done than before I ever started and I've learned a lot - so it's not a big deal. I still want to know HOW it happened, though, so I can troubleshoot if/when it occurs again.
THANKS for your help - I'll keep you posted!