ok, i will try to sort this out for you...
If you feel comfortable (and able to take the case off) i would recommend doing this yourself, as you will learn quite a bit, and will feel more comfortable with your computer...
... however, i will except no fault for anything that goes wrong during this process...
<b>1. Reset your BIOS settings to Optimized defaults</b>
- Enter your BIOS (DEL at bootup)
- Hit F7 (or choose the "Load Failsafe Defaults"
- Hit "Y" and enter
- Save and Exit your BIOS
- Shut down your computer
<b>2. Open your computer case </b>
- Look at the back of your case, try to figure out how it opens (will most likely need screwdriver)
- If your case has panels, rather than a "cover-all" make sure you take off the side that the motherboard is NOT on
- I generally unplug almost everything when working on the "inside" however i leave the power cord to the PSU in, for the ground.
- if you are touching components, try to use one hand to hold your computer case, if you need both hands, touch your case before you touch your computer (this will minimize shocks)
<b>3. Check settings </b>
- Locate the dip switches for your FSB and multiplier, they are labeled as "CK_RATIO" (multiplier) and "SW1" FSB
- Check your settings for CK_RATIO, the first four should be the same, check your manual (pg 13 in the online version) for pictures and settings
- Check your setting for SW1, you want it in the off position, which is the towards the bottom of the board
<b>4. Check system </b>
Plug everything back in, (leave the case off for now) and run WCPUID (<A HREF="http://hp.vector.co.jp/authors/VA002374/src/download.html" target="_new">download here</A>) to check the speed of your system, what you are interested in is the "internal frequency" and the "system clock" they should be ~1466 and 133.3 respectively, if not, take your computer back to the shop...
good luck!
Engineering is the science of making life simple, by making it more complicated.