Problems Connecting to servers in OpenGl.

ever since january i think, ive kept getting problems joining servers while in OpenGl mode. I switched to D3d and it worked, but my crappy pc sucks too much to use d3d. I always get “bad challenge” or “connection timed out” and stuff like that.

current pc Specs:

AMD k6-2 500 mhz
128 mb ram
Geforce 4 mx420 videocard
Latest driver on mx420 (44.03)
Windows 2000 Sp2 (had sp3, still didnt work)
running directX 9

it use to work fine, now i dont know what the problem is.

any help would be appreciated.