Interesting ...
[color=blue]
> ... bottle it and they had me put in some powdered dextrose in each bottle
> for carbonation. I let it rest for about 20 days and then refrigerated.
> The brew had the right color but it was flat.[/color]

20 days should be long enough to develop good carbonation if it was a
room temperature (somewhere around 70F).

[color=blue]
> ... I then Dump an unchilled bottle down
> the drain and there is Tons of carbonation. In fact I Pour the rest in a
> glass and I get a nice two inch head. so I know that chilled the beer is
> FLAT and at room temp (72 degrees) is has bubbles.[/color]

More CO2 will dissolve in cold beer than in warm... so the cold beer
is probably holding a lot of the CO2 when you pour a glass. The warm
beer will let go of its CO2 quicker. However, you should have enough
either way. Perhaps they didn't instruct you to add enough dextrose
in each bottle to get the carbonation you want.

[color=blue]
> When I put this beer in the
> fridge will go flat? or can I relax ...[/color]

Relax!

Generally, it is recommended to put the sugar in the bottling bucket, as
it appears that you did on this last batch. That way it is more evenly
distributed and the correct amount gets into each bottle.

It should not go glat in the fridge. Be sure to leave it at room temp
(70F) until it is well carbonated. I just put one bottle at a time into
the fridge and test it until it is done.