Help! OpenGL32.cpp error

I have Windows 2000 SP2 with a GeForce2 Ti, and it goes like…
Other OpenGL programs fail as well… this happens to be Half-Life.
Stats: AMD Athlon XP 1900+ (Accept no intel
K7S5A ECS motherboard (latest firmware)
512MB of DDR RAM
Error occurs on Win98se, and WinXP.
Save me! I have the NVIDIA Detonator drivers 27.42 (i have friends )