I have tried all versions. Right now I have 1.1.2 APO installed with the 1.1.7 Equalizer GUI, just like I believe I had before. Installing it as LFX/GFX still doesn't work - at least for me it never did. I had it installed as SFX/MFX and it worked properly, but now everytime I try to install it as such, my PC mutes itself after rebooting until I switch it back to the previous setting or uninstall the APO and reboot again.
APO mutes PC audio