Need virtual screen for GeForce ..

Archived from groups: comp.sys.ibm.pc.hardware.video (More info?)

Folks,

I am trying to make digital maps from screenshots (i.e. googles
satellite images) .. I can access the maps only by what is on the
screen, so I want to screen capture whats on the screen and then
assemble the tiles to one large file.

So far so good .. no problems here ..

Now I want to have these tiles as large as possible and was thinking if
I had a virtual screen of lets say 2000x2000 pixel it wold make
grabbing much easier ..
Does anybody know how I can get a GeForce 2 to have a virtual screen?

Any advice appreciated

Matt