[Solved] Strange graphical glitch with post process and other issues

[Seboss38]

Hello,
I'm experiencing 3 problems with the game:

1. I get a strange graphical issue with some combination of post effects. It looks like Gamma is way too high or something. This occurs when Bloom and/or Motion Blur is on:
Without post effects.
With post process effects

2. Initial loading time is ludicrously long (a full minute or so). Could that be a side effect of the copy protection scheme?

3. Controls 'stick' sometimes for a few seconds: controls freeze or the character keep on going in the last direction pressed even though the key is not pressed anymore.

I run the game on a Athlon64 3800+ with 2GB or RAM and Radeon X850XT 256MB with Catalyst 7.3 (latest). I use Windows XP Pro.

Do you have an idea of what might be going on?
Thanks in advance.