My old laptop
, Toughbook CF73 running XP Pro, doesnt really like OpenGL. It has the Intel 915 GM/GMS, 910 GML chipset with the most current
Intel drivers. I'm kind of guessing that it supports an older implementation of OpenGL and hasnt been updated.
I've had a couple of odd errors that I've never seen before with OCPN when trying out OpenGL. Most recently, coming back from hibernation, OCPN seemed to have taken over the display and the only fix was a POR - Alt/Tab and CtrlAltDel both failing to work.
This isnt meant to be a bug report, more an indication of which chipsets do & dont work with OpenGL.