[Aron in Toronto]

Raleigh5,

This is just a guess, but your top issue sounds more like a sensor issue, either in the parking brake or the top latch located above the window.

Check to make sure the brake light on the dash is lit while raising/lower the top. If it's not illuminating all the time the sensor in the parking brake handle assembly may be going bad.

If it's the sensor in the latch above the window try sticking you finger in the top latch receiving pocket above the rear-view mirror to and see if it helps.

I am not writing from personal experience on these issues, only passing on info that I've picked up from other forums.

renntech.org has a sub-forum on Boxster top issued and solutions.

Let us know how it works out.

Regards,
Aron