Go into your c:\ directory and look for a hidden and system only file named boot.ini.
It should look something like this:


[boot loader]

timeout=30

default=multi(0)disk(0)rdisk(0)partition(1)\WINNT

[operating systems]

multi(0)disk(0)rdisk(0)partition(1)\WINNT="Microsoft Windows 2000 Professional" /fastdetect




What you should do (i think, its been a while), is just add the following line to the bottom.


multi(0)disk(0)rdisk(0)partition(2)\WINNT="Microsoft Windows 98se"


That should allow you to choose which starts up.

cheers..
xmaddness