I am typically a firm believer in the "don't call b/c it will A)make them want you, or B)make it easier for you" philosophy. And sometimes it works, and sometimes it doesn't. But after my last relationship I've come to realize that you can't stop how you feel. Feelings will change with time, not because you make them go away. If you guys are still on decent terms even though you're not dating, and you're suffering because you haven't talked to her in a while, just call to say hey. But you have to make sure you don't have any expectations. If you know you're going to call her with ANY expectation in your head at all, then don't call because you will most likely get off the phone more upset than you were before.
I called my ex the other day. I had been debating ALL day about whether I should call. Ever since our break up, if we've spoken its been him getting in touch with me. But the calls get less frequent since we don't live near each other, and we're not together anymore, and I can admit it, I think he's moved on. But I was really down the other day, and missed him, and thinking about whether I should or shouldn't call him just brought me down even more. Then once I decided I was just going to call him, it was like a weight had been lifted off my shoulders. But I honestly called with no expectations. So it was a good casual convo, and that was all. And even though nothing came from it, I was happy afterwards, just because I spoke with him.
So don't make your decision based on the effect it will have on her. Make the decision based on how it will make YOU feel.
Hope this helps a little. Good luck with everything
Cinderella said to Snow White
"How does love get so off course
All I wanted was a white knight
With a good heart, soft touch, fast horse
Ride me off into the sunset
[URL=http://dizzygirl.net]Baby I'm forever yours[/URL]"