This openGlproblem we all seem to have is indeed annoying. I had a go at the manual, and from what I've read, it looks like Vue is showing decimated mesh previews instead of full geometry. Changing openGL settings to actually "show decimated mesh preview"  doesn't change anything, whicj leads me to think ther is a glitch there, and we only get decimated mesh previews, whatever our preview options are set to.
What do you think?