all you should have to to is to make sure that the ram is running at 133 in the bios, not 133+33 (166).
cauz unless you have super overclockable PC2100 ram its unlikely to work at PC2700 speeds.
if your ram still doesnt work at 133, i would reccomend you check it for errors and integrity using MEMTEST86.
You're an embarrisment to nature you know that?