Q3 and Vodoo 3K

I have played my Q3 for over a year now. I logged onto Gamespy and downloaded their software and now get an error message whenever I try to play Q3 either in the arcade or just on my PC.

I have downloaded the latest GLsetup twice and been to every source to fix the problem. Nothing has changed - I still get the same error messages. HELP please-I’m desperate??? Ron B.