Quote Originally Posted by circular View Post
I've got the same problem with vertices, with Mobile Intel(R) 4 Series Express Chipset Family.
My OpenGL engine also had (and maybe still has some) problems with Intel GPUs on laptops. One workaround that helps to overcome *some* problems is to disable Vertex Buffer Object.

The other good advice: upgrading your drivers helps for some problems. Go to http://downloadcenter.intel.com/ , choose "Graphics" from "Select a product family", choose "Laptop graphic controllers" from "Select a product line", and then in the box "Select a product name" you will see exactly your graphic card, "Mobile Intel(R) 4 Series Express Chipset Family".

You may also be able to get upgraded drivers from your laptop manufacturer, like HP.

Maybe this will help