I've come across a bug in the most recent Intel 4 Series Express driver that has been made avialable by Dell.
The bug can be easily reproduced with a simple OpenSceneGraph application. The problem seems to boil down to the driver not being able to handle multiple calls to glDrawArrays when drawing GL_LINES.
I am not versed in OpenGL, but I've described the bug in OpenSceneGraph terms at the official OSG forum. Please follow the link for more details and the sample application code.
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