Hesitation?

Hi all,

I have done about a half dozen clean installs on different
machines over the past several months. The problem is
that all of the machines have a 60 second hesitation
problem that occurs randomly and not very often. It
could be when I start IE or when I start explorer. The
machine locks up for 60 seconds during which time the
task bar/start button turns white. Once the time passes
and 98 wakes up again it runs fine until the next time it
goes brain dead. No additional software other than the
original cd is used and I have tried different oem cd's
on different machines and they all do this. The only
commonality I can see is W98SE. Any ideas?

thanks,
charles.....