The light thing is normal at start up. Check the fuse first. It is located behind the panel that is around the rocker switch for the spoiler. There should be a folded paper in the cover with the fuse diagram.
If the fuse is ok, check the relay to make sure it hasn't fritzed. On the 2000 MY, it is relay #9 in the rear trunk. The relay panel is behind the trunk sidewall cover on the left (driver's) side. It has a zip strip holding it in place so you will need to clip that off to get the panel to slide out. The best thing to do is find someone locally who has a Boxster and swap relays with them to see if it works, then go to the local dealer and get the relay if that was the problem. The relay part number for the 2000 MY spoiler retraction is 996 615 102 00 (YMMV).
Btw, disconnect the battery before replacing the fuse. It won't hurt you, but a quick short can kill the on board computer. Also, make sure you have your radio code before you disconnect the battery. If you don't have it, most dealers will look it up for you at no cost. You just have to take the car in so they can get the serial number and proof of ownership.
Good luck!
