You can get the tri wing screwdriver that Lori mentioned at nintendo screwdriver.com

it sounds like the laser assembly in the optical drive needs replaced. Follow the instructions in the guide: Installing Nintendo Wii DVD Drive. You can get the tri wing screwdriver at nintendo screwdriver.com

I found a less expensive tri wing screwdriver at nintendo screwdriver.com They ship for free too.

It is tricky to do on a small screw, but you can use a drill bit that is slightly smaller than the head of the screw to separate the head from the screw shaft. You can then use a pair of pliers to remove the remaining threaded piece of the screw that remains in the threaded hole. Sorry, This is a little difficult to describe with just words. Maybe I'll Try to get a picture of what I'm talking about. Tri Wing Screwdrivers

Go to nintendoscrewdriver.com. They sell the right size tri wing screwdriver to take apart any nintendo product. It is long and thin enough to get down into those deep plastic holes that are found on things like the wii nunchuck.

Go to nintendoscrewdriver.com. They sell the right size tri wing screwdriver to take apart any nintendo product. It is long and thin enough to get down into those deep plastic holes that are found on things like the wii nunchuck.