[gaming forces]

I have a problem with counter strike 1.6.when i click open counter strike 1.6 i can't toplay because when I open cs 1.6 they write somting dlu32.dll file not exist,and when i click ok again somting write a opengl32.dll file exist.I don't now where is the problem.I instal the patch v21 but I have the problem,and I instal the graphic card drivers but I have the problem,so please help me..

p.s. sory for my englesh