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VW2009 just started crashing on startup of program


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First week of September I install VW2009 on our theatre dept computer lab PC's. All works fine for 6 weeks. Than last week VW2009 starts crashing on startup. Only thing new is recent upgrade to Quicktime version 7.6. I uninstall new Quicktime, reinstall version that came with VW2009 installation disk. VW2009 still crashes. It happens while it is initializing the Rendering System and the error is "The instruction "random numers" reference memory at "more random numers". The memory could not be read." I still have the old VW2008 on the hard drive and that starts up with no problem. I have checked the video drivers and they are up to date. Here are the computer specs (there are 3 computers, all the same, same problem on each):

Dell Optiplex Gx620

XP Professional version 2002, service pack 3

Pentium 4 CPU 3.40 GHZ

3.39 GHZ, 1.99 GB of RAM

Hard drive - 232GB

Vectorworks 2009 sp4, Design, Educational license

Someone please help!

Lara Dubin

Theatre Dept. Lighting & Sound Supervisor

Mt. Holyoke College

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to check the drivers I went to the intel web site and used their intel driver update utility. there I found out I had a customized driver and needed to check with Dell to check for an update. so after much more searching online I could not find any drivers with a later date than the one I had.

And VW2009 worked fine on these computers for 6 weeks with this video driver! until I downloaded the latest version of itunes and quicktime.

and now, even though I uninstalled the new quicktime and reinstalled the old quicktime version that came on the VW2009 installation disk it still crashes during launch up.

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Tried system restore. did not solve any problems. then I tried turning off the hardware acceleration. that worked with limitations. With the hardware acceleration turned up to just the second level I can open vectorworks 2009. Any higher than that and it crashes the program on launch. So I can now open the program but with very compromised (slow)screen graphics. Again I just want to say that for three weeks in september this program worked great - with the hardware acceleration set at full. I am very frustrated. what triggered this change and how can I fix it?

Dell Optiplex Gx620

XP Professional version 2002, service pack 3

Pentium 4 CPU 3.40 GHZ

3.39 GHZ, 1.99 GB of RAM

Hard drive - 232GB

Vectorworks 2009 sp4, Design, Educational license

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