I got this video of eBay and it shows exactly where on my car the top folding oddly (make that 'normally').
http://luve.darkcom.net/AUG.28%2000%20PORSCHE%20BOXSTER%20SILVER/boxster%20movie%201.MPG
This "chop" we all speak of is what got my insurance to pay for my new top! Had I let the top come down naturally and split my window, it would have been a "mechanical problem." Since I got out of the car and hit it, viola, comprehensive insurance kicks in. (Evidently that doesn't affect my rates either.)