You can do this by editing the My Documents\Diablo III\D3file.
Change this line: Display Mode Window Mode “0” to Display Mode Window Mode “1”.
After that, kill the agent process using task manager and run Diablo 3 Setup.
27# Display Drivers Have Stopped Responding Update your graphics card drivers and operating system.
Wait for a while and try again, it should be fixed.
Exit Diablo III before changing Parental Controls to fix this error.
0# Diablo 3 Known Errors and Issues You can track of other known errors and issues with This Thread.