chests and engin's keeps change the light strength in the game

[Mantris]

Launcher Version: 1.0.4.1

Operating System: win 7, 4GB RAM, 64bit, intel core i5

Java Version: java 7 Update 9

Antivirus Program: avg

Description of Problem:

when i look at chests and engin's thay keep changing light level.

can some one help me.

her is a pic : http://imgur.com/8lni5

Error Messages:

Error Log:

[Vincent the gamer]

Try to chage the graphics it helps

[Mantris]

it din't do it :(