> The osc1 pin has a 100 pf cap to ground and a 10k resistor to +5v
> The osc2 pin is connected via a 680 ohm resistor to a bi color led for a
> clock working indicator.<(added later).

>  If I take a new pic 16c84 straight out of the box put it in the ziff
> and
> power up in run mode the clock oscillates,pin 4 lights the led,no
> problem.

Okay, chip is clearly in the RC mode in this case.

> BLANK CHIP
>  Now I switch to program mode on my programmer hdw.I use a simple bit of
> code that toggles rbo when ra0 or ra1 are brought low.This code works as
> expected in picsim no error's and compiles in mpasm no errors.Using
> prog84.exe
> the pic  program's verifies etc. in 62 second no problem.I choose
> rc,powerup
> timer,lpt1,inhx8m in the programmer software setup window no wdt no code
> protect
> The clock STOPS no osc2 not a blip osc1 stays high osc2 stays low.I now
> have 4
> 16c84 chip's that are dead.and I have only one left.Lest you think I'm
> totally
> stupid I did'nt use them all at once each time I have turned the board
> inside
> out looking for possible hdw error's shorted or overloaded pins etc.

I would suggest checking the following:

[1] Look at the voltage on pin 4; make sure that it really is being pulled
    to +5.  The RC oscillator on a PIC will not run if the device is in
    reset mode.

[2] Look at the voltages on both OSC-IN and OSC-OUT.  If OSC-IN is high and
    OSC-OUT is low, try grounding OSC-IN a few times.  If OSC-OUT goes
    opposite OSC-IN, you are programmed for the wrong clock mode.  If it
    toggles high/low on each rising edge of OSC-IN, it is programmed for
    the right clock mode.  If it just sits there, write again--something
    is screwy.  If OSC-IN isn't high, check the VDD rail and the pullup
    resistor.