Q:
I'm a steam user.
Occasionally my game bugs out and a portion of the screen's graphics is covered by red squares.
Usually i reboot the game before it crashes, but this time the square was only over one potion in the inventory so I F6 saved and kept playing.
Upon leaving the map the game crashed.

My dialogue autosave, level autosave and quicksave now do not load.

Can I get back to A3 without replaying the entire bloody game?

If you cannot load any of your saves, I'm afraid that there is no way how to restore your progress. That's why I use ten save slots for Inquisitor and every time I see a red square I quit the game immediately because no good can come from them.

Red squares are sign of a memory leak for which there is no fix yet.

Take a look at this

http://www.gog.com/forum/inquisitor/inquisitor_patch

Unfortunately, the red squares aren't fixed in 1.10.16.

Didn't see that the patch has even been release yet

1.10.16 is the release version on Steam and I hope that it will become available here as soon as possible. It contains just small fixes, but it's better to have the game in the latest and the same version everywhere.