Heidi

[#1]

Hi,

I have a quadro 5000 running on windows XP Pro x64 with autocad plant 3d 2011.

The certified driver on the autocad website (6.14.12.6570) keeps failing back to software. Also the latest nvidea driver (6.14.12.7536) does the same.

Its not stopping me, but a stable driver would be nice.

Any suggestions for how to troobleshoot or does someone at autodesk know of issues with this card/driver?

Cheers

RichO

[#2]

 Hello RichO,

This has nothing to do with your graphics driver; it is a limitation in XP using DirectX 9.  As prevention from crashing the product it will switch back to software mode when the device is lost due to screen saver, locking the system, or hibernation. It is a conservative approach to avoid loss of work. This will be less likely to happen in Vista and Windows 7.

Hope this helps,

Randall Young

Lead Engineer

Autodesk Inc.

[#3]

We just had a machine which had this same behaviour. When locking the system and then after unlocking, and then whenever the model was shaded, it would throw a Heidi Module Load Error, "Error Loading Heidi Module - c:\program files\autocad 2010\drv\acaddm10.hdi"

Windows 7-64 with Quadro 4000, Dell T5500 

- checked the Device Driver search path

- driver settings looked good when comparing to other machines

- tried changing the driver and turning hardware acceleration back on, they just wouldn't stick - it would keep reverting back to Direct3D and software acceleration

We re-installed both the video card driver and the Nvidia Performance Drivers for Autocad - initial indications are that this has done the trick.