I got the same problem well i have been playing JK2 for 4 years with no problems and now i got this Could not open OpenGl system error when starting up jk2mp.exe All started when i bought, installed and formated a secondary disk!
Well i have tried many things:
WickedGl
Latest nvidia drivers
though i couldn't delete the old drivers from device manager
i need a good answer for my problem please i have tried everything but nothing worked and here are my specs
Intel P4 2.4
Ram: 1,5 gb
OS: Windows XP Pro sp 2
HDD: a 40 gb and a 256 gb
I got intergrated motherboard graphic card and
a nvidia GeForce FX 5200 128 mb
with latest drivers
also let me mention that in system check everything was ok except DirectX and 3D Accelerator
help me!