[Elecraft] I'm Stumped- need some help from the group

[Bob Fish]

Hi Guys,
I was up late last nite trying to solve this thing and failed, it really 
has me stumped. It may be obvious to one of you guys that know the radio 
better than I. Here goes:

Last weekend, I made some ssb contacts in the WPX contest and all was 
well. Good signal reports and my audio was reported in good shape as 
well. Then on Tuesday I attempted to check in to a local 80 meter net 
and after several attempts with no responders. A guy comes on  and says, 
"Hey K6GGO, your 500 Hertz high, check your RIT". Well, I checked my RIT 
and my XIT and they were both off. So after messing with this thing all 
week I am throwing up my hands and asking for help.Here is the data I've 
collected:

1) I performed Wayne's procedure for adjusting the 4 mhz master 
oscillator (C22). After I adjusted C22,  I zero beat WWV and the display 
reads 10000.53

2) I measured the output frequency of the transmitter with my frequency 
counter and it matches the displayed frequency.

3) Last night I quickly went through the Pll reference oscillator range 
test, VCO test, VCO alignment, BFO test, and then ran the VFO 
linearization. Still no Joy!

4) Both the xit and rit appear to be working normally and are off.

5) Both VFO's are set for the same frequency and are not set for split 
operation.

Its as if the receiver and the transmitter are operating on different 
frequecies 500 hz apart (receiver lower) and the display shows only the 
transmitter frequeny.
I hope this makes sense!
This is probably going to be a button or something in the wrong position 
causing me endless embarassment.

What do you guys think?

Thanks for the bandwidth,

Bob   K6GGO