And it claims a heap of other developers support its stance.
The firm 3D Nature, said in an announcement that the display drivers are "unsuitable" for professional real time visualisation.
Further, said 3D Nature, "all past and current ATI Catalyst drivers for all ATI Radeon series display cards" have critical bugs that "render the hardware unusable".
The firm claimed ATI has known about the problems since last year but hasn't addressed the bugs nor acknowledged them publicly.
A page on the web site claims a number of other developers have joined 3D Nature in its protest. The full list is here. µ