My hardware board is Am437x-gp-evm6.6 BSP,my QNX SDP 6.6. I configured the graphics.conf and rewrite an graphics.build 
file. 
(1)After the OS image started, I can not driver the graphics by using 'screen -c usr/lib/graphics/am437x', it prompted 
'memory fault', and the screen is not completely dark as document discribed.
(2)when I input 'gles1-gears',it prompted' function succeeded'. But when I reinput the command 'gles1-gears ',it 
prompted 'command not find', and I found the execute file 'gles1-gears' indeed was deleted from dicrectory 'usr/bin'. 
Anyone who can help me solve these two question? 
The attached is graphics.config ,build file and LCD screenshots。