Great questions Jon,
You are correct, this issue is about Open GL. I am using RED stand-alone for my work. The text is in its own track, and not part of a container.
1. Start with OpenGL mode OFF.
2. Select the Add Vector Text icon to open a new track
3. Enter type in the text window and Update.
4. Text looks fine in the composite window. The shape track scale is 100 percent.
5. Under Preview menu, select OpenGL mode to ON (any of the caching selections).
6. In the Composite window the Text is now blown way out of scale
You should also know this behavior appears to only happen with Text. The graphics tracks in the comp are not affected/distorted when using OpenGL. My GTX 680 is passing the RED test, but I still wonder if this card is the problem.
Thanks for helping,
Mark.
Kuhnen Brown
InterMountain Digital
Oregon