I am having the exact same extra stitches problem...I read the replies and still can't figure it out. I have been practicing a square that started with 15 stitches and a few rows later I have 20 stitches, and they keep increasing. I've watched the cast-on and knit stitch videos and seem to be doing them correctly. The only weird part is that after I cast-on, and then knit another row (starting my 3rd row) my yarn is in the wrong place. There's no way for the first stitch to wrap around the back counter-clockwise...it has to go over the front clockwise or wrap around twice (if that makes sense!). So when I look at my needle with the working part to the right, the working yarn is going out the back to the left instead of to the right. Any suggestions?