Hi:
The solution is to update your drivers for your various devices in your computer. If you buy a computer from Best Buy it doesn't come with drivers....well I shouldn't say that....it comes with Windows 64 bit drivers and the device manager is clean. These Windows drivers are temporary drivers for the tech that was too F-ing lazy to load them and do a proper job for you before he packaged up your unit and sent it out to Best Buy. The device manager may be clean but these are TEMPORARY drivers....NOT specialty drivers meant especially to bring out the HD and high tech features of the device.
If you have a NVidia card in your computer then go and get the drivers from the NVidia site and so on for AMD. You have to locate these by looking at your sales receipt to identify the hardware then going to the manufacturers site to obtain the driver for the particular device you are looking for. The motherboard make and model should be written on the board underneath the video slot and will give the search engine on the AMD/Intel/ASUS/Gigabyte site all it needs to find your chipset driver for your motherboard. Then grab the sound driver. A copy of the manual for your motherboard can be obtained from the board manufacturers site. It tells you everything the MB does.
The proper order to load these drivers is Motherboard Driver...Video Driver then Sound Driver....then everything else(Programs, Virus Checker etc...) if you are doing a fresh install. The same is said for the order when simply updating drivers. If you feel your BIOS needs updating then it comes before everything aforementioned.
I have been building computers for 30 years....trust me its either your drivers or you don't have the horse power. I have a 64 bit system and mine is flawless.
Cheers
Reap