Just got word that Radeonthetop has posted a new version of the Sprit Driver V1.4b based on the Catalyst 4.9 beta.

What's New?

Special OpenGL Doom 3 Optimization Mobility/FireGL Optimization Support for mobility/FireGL Bugs resolved (IL2 Forgotten, Lock on , Tomb raider taod , ground control...) Added Atuner Optimization Spécial Lock (For R3XX only)

Download Spirit driver V1.4b