auto set (bge.render.setVsync(value))?

is there a check box I am missing somewhere to set

bge.render.setVsync(value)

in the scene before runtime?

The VSync option is in the render options.

where?

I am using 2.68a and I don’t see it,

It’s in the system panel. Now that I think about it, it may not have been in an official release yet. You may need a more recent build like a 2.69 RC build. I remember seeing discussion about the RC, not sure if there is some downloads somewhere.

I guess I can just set it with
bge.render.setVsync(VSYNC_ADAPTIVE)

in a delay 1 time script?

import bge
bge.render.setVsync(VSYNC_ADAPTIVE)

is throwing errors, am I scripting this wrong?

http://builder.blender.org/download/

Can you tell me good candidate?

I am on a 64 Win

Go with the 64 bit official one.