but I will simplify, MY ENGLISH IS SO BAD.... let's go
Step 1: You have firepro driver intalled ? yes, and have problem ?
1°: Open C:\
2°: Open Firepro Driver Folder C:\AMD\14.502.1019-WHQL-FirePro-WindowsX32X64
3°: Go to \Packages\Drivers\Display\WB6A_INF , in this fold have more 2 folders, B181879 "this folder change name in other drivers" and CCC2, OPEN B181879
4°: Search DLL atio6axx.dl_ and use 7-ZIP for open DLL, user use the right mouse button " http://i.imgur.com/GGCYbFu.png "
5°: Pick DLL, and DROP ONLY THIS DLL ON C:\Windows\SysWOW64 and restart system, try work in cinema4D or other program do you have problem.
EDIT: LAST DRIVE DON'T FIX THIS PROBLEM, PLEASE AMD FIX PROBLEM, USERS DO NOT NEED TO MAKE MODIFICATIONS TO THE DRIVER WORK.
Edit2: Sorry guys, problem not solved, I forced the cinema 4d and the problem returned.
1. Windows 8.1
3. "C:\Program Files\MAXON\CINEMA 4D R16\CINEMA 4D.exe"
4. MAXON CINEMA 4D Studio (R16) 16.051
"I can not turn on OpenGL in Cinema 4D because it appears this problem all the time, i have a v4900"
But now you are saying you have crashes. What makes you think your crash is OpenGL related. I need details. Do you have a dump file?