When I got sybhil she had a hinge loose on both sides [:0] You just need to prise off the wood trim horizontal along bottom of sides then peel back the vinyl to reveal the hinges I had to just tighten the screws,might be worth having a bag of small tacks just in case you need them when putting back the trim(I got some from wilkinsons)
I am more inclined to think this problem is just a case of pop the top & bring back down see if it corrects it's self,as sybhil's roof did do this once,I hadn't got that side hook over it's catch properly.
Does anyone know how to go about putting a new exterior strap on ??[?]sybhil hasn't got one,It stops the roof folding the wrong way.
"SYBHIL" & N0.1