[HBQRP] Who's an op amp expert?

[Dale Botkin]

Trying to troubleshoot what should be a dead simple op amp circuit and I 
could use a hand.  This is why I normally stick to digital circuits.  :)

The amp is an MCP6002, supply voltage is 3.25V.  Schematic attached.  
I've got a voltage divider on the + input - a couple of 1K Ohm resistors 
(R9 & R10, not 10K as shown in the diagram), so the + input is sitting 
at about 1.6V (half of Vcc).  Input is AC coupled through a capacitor 
(C7 in the diagram), then a series resistor R8 to the - input.  Another 
resistor R12 from the - input to the output.  No output load at the 
moment.  Simple inverting amp, right?

So.  The input resistor is 300K, the feedback resistor is 510K.  I would 
expect to see a gain of around, say, 1.7, right?  But I'm not.  I'm 
getting about 0.15.  A 1.06V pk-pk signal in gives me about 160mV pk-pk 
out.   Nothing I have tried makes any positive change.

Clues?  I know I must be missing something here.

Dale - N0XAS