Gcode and CNC

I was wondering if any one in the group could take the time to help me
with a Gcode problem. Please be patient because I'm not really sure how to
word my problem in a short direct way.
So here goes.
I design a part in my CAM software and post process to Gcode. No problem
there. My parts are small. This example is a "V" shaped bracket with rounded
bolt holes on each end and the point. 3 holes to drill and a V pattern to
cut out after bolting down. It is approx 2 1/2 across the open end of the V
and 4.2" down the longest side.
My first point is laid out at 0,0 and rest of the points move from there
[up in Y and along X.] This means that the actual outside of the rounded
bolt boss hole is at a negative value [bolt hole boss is .800 in diameter
with a drilled hole in the middle]
That's the lay out.
Now I fire up the CNC and Turbo CNC. Move my cutter to with in 1" of the far
left of my stock [viewed facing the machine] indicate to TCNC that my X&Y
are at 0,0 and commence the machining cycle [move to first drilling point.]
Here comes the question.
Though the Gcode says my first drill point is @ X0Y0, the table begins to
move for several inches at a 45 degree and stops. As if it was moving to 0,0
for me to commence drilling. I thought I'd already indicated to Turbo CNC
that I've zeroed the table. Wouldn't my first hole be right there with no
movement? How do I control the distance from my home point relative to my
first point of machining? Like, if [for example] my first drill point was at
X1,Y2. I place the cutter on the left corner of the work piece. Zero all
axes in the Tcnc program. Commence machining cycle. Shouldn't the table move
only 1 inch along X and 2 up Y?
I've got a sneaking feeling this has some connection to Absolute versus
Incremental machining but can not make the connection.
I'm sorry this is long and I've probably only confused anyone that actually
endured this long rambling.
Still thanks to all that consider my plight.
regards
Owen