LinLMI

Not the shadows on the ceiling -- the white glow at the corners where the walls meet the ceiling .....

here is a picture

I am getting glow lines where the walls meet the ceilings.  This just started happening since the most recent upgrade.  This used to happen several versions ago, but not again until just recently. 

I'm also getting a lot of freezing and crashes. 

Is anyone else getting the glow lines?