Plaxis programs use hardware acceleration for graphical display of the (3D) Input model and the 2D and 3D Output of results by using the graphics card and OpenGL (minimum version 3.3).
It could happen, especially with older graphics cards and/or older graphics card drivers that someone encounters problems, like some of these error messages:

• Access violation at address 06A87BE4 in module 'atioglxx.dll'
• GL error 1285
• EGL Context: Context activation failed: C0070006

This means there is something wrong with the graphic card: either a software issue in the drivers or needed memory on the graphics card is not available.

First, try to update your graphic card drivers:

• for NVIDIA cards, go to: http://www.nvidia.com/Download/index.aspx
• for ATI cards, go to: http://support.amd.com/us/Pages/AMDSupportHub.aspx
• for Intel onboard graphic cards (not recommended), in some cases it could help to update the drivers. These are available here: http://downloadcenter.intel.com/

When the error still appears in Output, there are two settings that may solve this:

1. Switch off anti-aliasing: Start output without opening a project from the start menu, and go to Settings (F10) to switch off Anti-Aliasing. Now try opening a project again.
2. Change the rendering method: in the same Settings Window, lower the speed of rendering