Relais doesn't work on ATI-cards. We are very sorry - it has been simply not interestening enough to write code twice.
Gracchus and ATI is even worse, sorry. We tried several workarounds on what we believe to cause the problem (readbacks) but didn't succeed.
For this reason be recorded videos of both titles and provide them as DIV/X:
- Gracchus - DIV/X (11 MB)
- Relais - DIV/X (70 MB)
We will however try to provide versions that run on ATI in the near future.