Hi My 2004 Boxster has just developed an issue where the Front bonnet keeps popping up. Started when I was driving home after filling the car up. I had to open the bonnet to get something out, then a mile down the road the bonnet popped. Did it on the drive when I moved it, now if I lock the car with the Remote, then unlock it the bonnet pops as well. Tried both keys, removed the electrics from the key so I hit the right button. still pops the bonnet. Any clues ??? Thanks In advance