Yes, I'm having the same problem. Also, on mine, as soon as I start it my Unused Memory starts slowing going down to zero. After about 5 minutes mouse motion on the system lags and winamp skips uncontrollably. Give it 30 minutes and it locks up, I have to reboot.
It's not like I have a slow machine either, 500mhz with 256M memory, running Win98.