Bios is up to date and you have all the latest drivers including the drivers on the ASRock website ( he linked it above ) ?
Just FYI you should replace that power supply with something less likely to explode. Something between 300 and 400 watts from Corsair, Seasonic, PC Power and Cooling, XFX, Silverstone, Enermax, OCZ or Antec. Antec has a few lower wattage good models. Really closer to 300 watts is fine but it's hard to find any cheap quality units that small.
Also any newer 7200RPM hard drive including storage grade drives like the WD Blue will be quite a bit faster than that old Raptor.
I'm downloading drivers from the website now to see if they fix anything. I know about the power supply I've already ordered an Antec EarthWatts 500W 80 Plus Bronze PSU. I'll just wait a while on the HDD I'm on a budget. Could my monitor limit the resolution size?