If you still use Windows 98 as your main OS you don't deserve to play Doom 3, or even own a copy of the game for that matter. These freaks will spend $500 on a video card but they won't spend a couple of hundred bucks for Windows 2000/XP, both INFINITELY better operating systems???
Thank God for this news. The last thing Carmack and the rest of ID need to do is support the morons still using Windows 98. I can just see it now the types of emails he would be getting from these people, "I demand my money back Mr. Carmack! My Windows 98 system with 64 megs of memory keeps crashing when I play your game, you suck at coding, ID sucks, Activision sucks, everyone sucks!!!"