Core animation: surface is too large...PLEASE HELP?

Hi there, I have graphic lag on my mid 2010 Mac Pro 8 core. ati radeon 5770 1gig vram with logic pro x and when reading the system profiler this line comes up quite a bit:

"....Logic Pro X[277]: CoreAnimation: surface 78399 x 831 is too large"

Can anyone tell me what this means and is this indeed a reason for my somewhat laggy GUI in Logic Pro x under mountain lion?

Thanks so much.

Thx Chabig, I appreciate the response. Anyone else have anything to add? Thx.