The needles were fairly small... I think 3 mm and 2 mm for the ribbing. I keep trying to convince myself to knit something in a large gauge (for instant gratification purposes) but I just never get around to it!
Did you try looking in the guide that came with it? Sometimes it will give diagrams of stitch problems and tell you how to correct them, or give a list of frequent problems and their solutions. If you don't have the guide, you could try searching the model number online and a lot of times you will have good luck finding it.