Hi all, Ok, I've been thinking about your problems with the renderer engine for a few weeks now and I'd like someone to try this. It might fix the issue.

Go to www.rarlab.com and download the free trial of "winrar" (it's an extraction program, like winzip).

Install Winrar and then run it.

In Winrar, browse to C:\Program Files\Ubisoft\CoJ2\ (or whereever you installed the game to)

READ ALL INSTRUCTIONS BEFORE DOING EACH STEP (DON'T JUMP AHEAD):

Make sure you're in the CoJ2 subfolder and select all 6 ".pak" files (hold down CTRL to select more than one). Choose the default location to extract them to EXCEPT delete the last "CoJ2" from the path. Select the following options before you press ok:

Extract and replace files
Overwrite without prompt

Press OK, and go make a sandwich. It's going to take a little while to extract all those files.

When it's finished, delete the original pak files (or just move them, it's up to you) just don't leave them in the CoJ2 folder. Here's a list of the files you should remove:

Data0.pak
Data1.pak
Data2.pak
Data3.pak
DataEn.pak (This file could have a different name if you installed another language than English)
SpeechEn.pak (This file could have a different name if you installed another language than English)

Ok, that's it. Close Winrar and try to play the game.

This may work because what I think is happening is that something is wrong with the unpacker code built into the game so when the graphics engine tries to access anything inside these .pak files it can't and fails.

If this works for anyone please report it here so others will know to try this possible fix.