Vsync in Windows 8.1

[MyNinjaPenguin]

AHA! Found it. It's earlier than I thought, back in March. Vsync works fine in build v0.9.8-128-g69d5c75, but is broken in v0.9.8-131-g98b6f0d and all later builds.

The changelog for v0.9.8-131-g98b6f0d says:
"Merge: 69d5c75 1ca3d39Merge pull request #5717 from thedax/win32NVidiaVSyncWin32/NVidia: go fullscreen later than previous builds, to avoid vsync being ignored"

It sounds like while trying to avoid vsync being ignored on Nvidia cards, they caused vsync to be ignored on (at least some) Nvidia cards. Ironic.
So, can this be fixed or at least worked around? That would be fantastic, thanks.