Thank all of you who have responded. Last night our group met and read through the literature. We believe we discovered one thing. We had the gyro plugged into a digital port on the RoboRio. We bench tested the gyro using 5V power supply and slowly rotated it in both directions. We got good readings, moving away from zero in each direction indicating that we probably have a functioning gyro.
However, when mounted back on the robot using an analog port, and viewing the dashboard, our driver reported that we still had drifting as he drove the robot. We now believe we either have a programming mistake or a bad Roborio. Fortunately we have a back up Rio so that test can be made either this evening or tomorrow.
We have someone working on a software fix, but if anyone has an idea or a quick copy paste from the WPI Library that might work, feel free to post or email to any/all of the following. Again we are programming in JAVA:
pagoglia@stny.rr.com khahans@corning.com