Thank you for the input. It was running fine, then I went to tweak some settings to see how it effected performance. After that, it started doing this.
If I use "Alt + Enter", it switches between the top and bottom 1/5 of the menu. It can go as high as "Instant Action" when on the bottom, and down to the first selection from the top. Even after selecting and aircraft, or "Instant Action" the cursor is limited to the same range on the overall menu page. Last I checked and have only SteamVR, WMR, and DCS running. (It's an HP Reverb G2, if it matters.) I'll go back and try it again to see if it changes, and report back.