We have seen some cases where, despite a certified Video card and driver being installed, there were stability issues when enabling hardware acceleration in AutoCAD 2012.
AutoCAD would then crash with a Heidi Error and/or an Unhandled Access Violation Reading 0x0048 Exception at e8f8e897h.
These issues could be resolved by reinstalling the required version of Direct X which can be downloaded from here:
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Hallo,
We have installed DirectX version 11.0, so it´s a higher version than the required in link http://www.microsoft.com/download/en/details.aspx?id=19743. But we get the same error with heidi driver. Can you help me?
Posted by: Erhard Klamminger | November 09, 2011 at 12:19 AM
Hi Erhard,
there can be many reasons for getting a "Heidi" Error - are you just seeing an error, or is AutoCAD actually crashing? I would in any case recommend to make sure you are running a certified card and driver, and run the DXDIAG tool in windows to check if there are any problems with your installed Direct X. If this does not help, please post the question in the AutoCAD forum at http://forums.autodesk.com/t5/AutoCAD-2012/bd-p/529 and I can reply to you there and do some proper troubleshooting. Regards, Silvia
Posted by: Silvia Menon | November 09, 2011 at 02:25 AM