No sound after re-installing Win98 SE

I re-install win98 SE and I do not have any sound on
RealPlayer nor is there any sound when the pc is turned on
as an intro.....I have notice that in the Device Manager,
underneath the Network adaptors area there is a section
with a minus sign in front of it called Other Devices and
is has a large yellow question mark in front of
it......within this section there is PCI Card and
underneath that is PCU Multimedia Audio Device....these
both have large question marks in front of them as well as
an ! on top of it.......What do I need to do to get sound
back into this pc?

Reinstall your audio drivers, they should have come with
your sound card, or on a cd with your motherboard.