Moores law having trouble keeping up?

I am not sure what is going on but from my point of view moore's law is in trouble.
For those of you not up to date on what Moore's law is it is the statement that every 18 months computers double in speed.
With the Intel X86 this has mostly been the case and if you follow what intel has been putting out you would think this true but.. Is it.
Last year I purchased and overclocked (not for long) a pentium 2.6 ghz. computer. I overclocked it to the max at about 3.9 Ghz.
Now you can buy Pentium 3.9 Ghz chips but you can't over clock them, not one bit they are already maxed out to the max.
It's been over a year and there has been no improvement in speed.
Intel recently introduced a new chip and it's another 3.9 no 4.0 or higher just 3.9 and you can't over clock it.
This is a null improvement in a year. Sorry but it seems for now Moore's law is dead.

Anyone who can find a faster chip please tell me. (I just checked Intel's site, they have no faster chips.)
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