Can firmware fix this?

[dasilverpaladin]

With same bracket i mean they are right together.
VGA sits right under HDMI3 and directly left to VGA is the VGA audio input.
2 other HDMI`s are "far" on the left side, i would conclude that HDMI3 and VGA use another
circuit so that they are able to bypass some hardware.

edit\\
I tried it now with different names, there are 4 tags with different settings.
When you select HDMI3 and go into menu to change tag of it you will recognize
some kind of switching between the tags PC, DVI, DVI PC and all others.
PC and DVI PC have no input lag also the picture looks different,
black level and color space.
DVI is more like the rest of the tags, input lag and stretched color space.

Seems like DVI and others are realy just rename options, PC and DVI PC are completely other modes.

[erdem_ua]

Here is detailed tests. Please read instead of guessing.
http://www.avsforum.com/avs-vb/showthread.php?t=1133892