"Sheckster" wrote in message

Joined bothedges of teh board so I know I am not transferring one
inacuracy
to another.

Your problem may be cumulative, and the above may be another source of your
problem.

Jointing both edges of the wood will not guarantee parallel edges, and
without parallel edges you won't measure a 90 a degree cut from both edges.

Jointing one edge, then ripping the opposite, is the correct method ...
assuming your table saw is aligned correctly.

--
www.e-woodshop.net
Last update: 6/21/06