Are you sure its your BIOS that you can't enter sometimes? The BIOS is where you can configure the processor speed (FSB) and multiplier settings, etc. You press F2 or DEL to enter it. If you can't even see that sometimes, then some hardware is faulty in your system. Could it be the Windows boot options that you are referring to, or something else that's not the BIOS?
If it happens only in Windows, or anytime after Windows starts loading, then that'll be driver issues, with the remedy being the one shown before.
If it's both the two scenarios above, then you most likely have a bad video card or possibly a bad motherboard.
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It's not a car, it's an addiction.
The only carb that matters is under the hood.
There's an option for most vehicles that increases brake horsepower, increases mileage, increases driver control, lasts longer than the alternative, and even reduces the price of the vehicle. Despite all this, most people in this country choose the alternative, an automatic transmission.
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