This does not bode well. I was planning on getting a Sport in the near future. When you find out if its a magazine problem or something with the gun please let everyone here know about it. I still want one though.
[Edit] And by the way, a picture is a good way to explain a malfunction. Whenever you decide to get back out to the range take a camera along to snap a pic of the malfunction if and when it happens again. Also try a different brand of ammo if you haven't already.