ZBrushCentral

Gradient background flickers in 3.5r3

Has anyone seen this before?

My background gradient has a very small flicker when working in r3. Everything was fine previously (Version 3.1 and 3.5,… never installed r2). This only seems to affect the gradient background,… the mesh and all menus are stable.

Running WinXP on a Macbook Pro. (Bootcamp)