"This is an issue we are taking very seriously and have been working aggressively to better understand what is causing this issue and how best to resolve," said a Pandemic community manager on the game'sforums. "We have a dedicated team working diligently to find a solution. Currently, we have a possible fix (in the way of a patch) that is being internally tested." 

Though Pandemic characterizes the ATI issue as the "most pressing," the community manager added that they're monitoring other reported issues as well.

So, well ,   Is Pandemic Anti-Radeon????

After 15day, beta-patch for Freezing motion & operation in Game. 

IF UR PC is DUAL CORE? or QUAD CORE,   IT's alone of one core only. so, "msconfig!!!".... control..

Low fps. Low quality.  Powerful More Higher Angry.......

Playing with ATi Radeon.  so.  ...  not too happy.  not too enjoy...

Think about Anti-Radeon .....   why selected AMD-ATI ..   :(