The emergency/handbrake button in my 98 Boxster occasionally sticks in the depressed (in) position. It sometimes feels like there is some binding/scraping as the button is depressed. The button will eventually release if I press it a couple times or slap the handle. The Ebrake works fine and releases, the handle button just sticks and triggers the dash light. Anyone else encounter this issue and know what may need to be addressed?