Gonchi: The game didn't like Windows XP much, if memory serves.
Finalguard: Really? Sounds like this game was intended for OH DEAR GOD WINDOWS ME!
This may be a lost cause, in that case. It may have been meant to be released much earlier, seeing how it's compatible with 98...
Just pulled out my copy and it does in fact list XP as a supported OS. I don't remember it working well on my XP comp though, I had to play it on my desktop with Win98SE.
*shrug*
I'm going to look through the manual, maybe it says something.
EDIT: Well the manual was rubbish, I'm afraid. There's no troubleshooting section I could find, in fact this is pretty much all it had to say about installation:
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Installing the Game
Inserting the CD may automatically prompt you to install the game. If your game does not automatically start the installation procedure then you can manually start the installation by double-clicking on the installer program in your Windows Explorer display. This program will be located on your CD-ROM drive. This game uses a standard Windows SETUP program. Whether or not your game automatically installs, remember these points:
Before installing any sizable game, it is a very good idea to run ScanDisk to check the hard drive for errors and Disk Defragmenter to organize it so that the game receives the best starting environment. These are Microsoft Windows utility programs. Help for these programs can be found in the Help tab of the Start Menu.
Be sure other programs are not running while the setup is active.
If your game does not automatically install then follow these instructions for manual installation.
1. Double-click the My Computer icon on the desktop.
2. Find the CD-ROM drive letter and double-click on it (the letter of your CD-ROM is usually D: and/or indicated by a CD-ROM icon).
3. Run the installation.
4. Follow the on-screen instructions.
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So, I went ahead and installed the game for the hell of it. That added links for Infogrames North America and Infogrames Support, neither work any more of course. There was also a Hero X Help link, but that just opens the manual.
Tried running the game, loads up fine, I can go through character creation no problem, but once the actual game starts there are all kind of glitches, it's pretty much unplayable (text won't display, can't interact with environment, etc.). I might give it a try on my old Win98 comp later, I remember playing the game just fine on it way back.
Sorry I can't help you.