Sounds like me about two months ago, though I tried it out on a pair of socks, and the ribbing was as wonky as it gets. (turns out I was making my purls backwards to begin with, so I couldn't get the needle in to knit. Thought I'd go bananas!)
I made a little pouch for my camera this week though, and those rows of purls weren't at all bad.
I think the trick is to not pull to much when you bring the yarn to the front to purl (does that make sense?). In other words, when bringing the yarn to the front from the back, make sure to not let out any extra yarn (which is easy to do, because you're holding fairly losely like you're supposed to, and you're making the yarn go around the tip of the needle).
Does this help?
Moooomy
I made a little pouch for my camera this week though, and those rows of purls weren't at all bad.
I think the trick is to not pull to much when you bring the yarn to the front to purl (does that make sense?). In other words, when bringing the yarn to the front from the back, make sure to not let out any extra yarn (which is easy to do, because you're holding fairly losely like you're supposed to, and you're making the yarn go around the tip of the needle).
Does this help?
Moooomy