ShadowFX and Tiles Don't Play Nice Together
Windows 8.1 Pro x64
nVidia graphics
Dual quad-core Xeons
16 GB RAM
I boot into the Win8 Start Menu because I like reading/looking at the Live Tiles while I wait for the system to finish booting. With ShadowFX and Tiles enabled at start up, I get flickering at the bottom edge of the screen (likely the auto-hidden taskbar) and I can't get to the desktop at all. None of the metro tiles or desktop apps will open and Task Manager won't open. (Actually, it probably opens but I can't see it or get to it because I'm locked into the Start Menu.)
The only way to get unstuck from this situation is to either reboot, or sign out and sign back in, then access the desktop quickly before either or both of those programs become fully active.
I have Decor8, ModernMix and Start8 also, but they don't affect either ShadowFX or Tiles when either of those 2 apps (but not both) are started at boot.
I figure my setup isn't a configuration that was tested much, if at all, because all the buzz since Windows 8.0 has been about booting into the desktop.
Jeff