I found a bug as well. When I dropped my CD out of the window (11th floor), it landed on the street. A 40t truck went over it before I could get it off the track. Unfortunately Lumpy, the dog of my neighbour, thought I was about to play with him, grabbed the CD with his teeth and took it into the garden and finally peed on it. My neighbour then went over it with his lawnmower.
When I finally got back to the PC with the CD, Gp4 refused to start. It gave me a "cannot read from CD" error.
I tested it over and over again, still everytime I recreate the bug, it is always the same. Up till now I have bought 32 Gp4 CDs who all have the same bug.
I think this is typical Infogrames.
REHAB IS FOR QUITTERS