Not only do they act as heat shields but they also shield the airport from interference. I saw my old Dual USB ibook's airport reception cut in half by leaving out the top shield.

Post edited by: mordaskyt, at: 2005/06/03 16:38
PB G4 15" 1.2ghz - Pismo G3 400 mhz - iBook G3 500 "Jukebox"
"SawSmurf" G4 500 - Quicksilver G4 Dual 1ghz modding...