Are you having IRQ conflicts?
Should I assume you are used to the way Windows 98 dealt with IRQs?
Anyway, In Device Manager, expand "Computer" and right click the expanded entry. Select Update Driver, then choose "Install from a list or Specific Location (Advanced)", click next. Select "Don't Search, I will choose the driver to install.", click Next. If Standard PC is shown in the list, choose it, otherwise un-tick Show compatible hardware, then select Standard PC from the list. Click Next.