Have not noticed any such problem. If it's OS based, here is my information:
Win 7 client, NVIDIA graphics runing OpenGL.
Win 7 client, NVIDIA graphics runing OpenGL.
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Remembering Tyneetryk
Phaedreas Tears - 15 years old and first(*) of true neutral guilds in Atys.
(*) This statement is contested, but we are certainly the longest lasting.
<clowns | me & you | jokers>