5月1日，在PTC的mathcad论坛里，发现一篇讨论不同的系统乃至不同的硬件品牌对mathcad14的三维图像支持的问题，从作者的实验结果，似乎不仅操作系统存在支持与否的问题，甚至连硬件系统也存在支持与否的问题。现将它原文转载，供讨论参考：
Problems with showing 3D-plots
3D-plots wont show on some machines
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Hi there
I know there has been post about this, but here we go again:
I'm in a math class, where some (mine inclusive) mathcad installations wont
show 3D-plots, as described in http://www.ptc.com/forums/viewtopic.php?t=7008
when inserting a 3D-scatter plot, a blank Square appears.
We have tried to isolate the problem and this is our results:
Lenovo R61i w/ win7 x64 ultimate - M020 (14.0.2.5) Error
Lenovo T400s w/ win7 x64 pro - M020 (14.0.2.5): Error
Lenovo w500 w/ win7 x32 ultimate: Error (older version)
HP w/ win7 x32 home: NO ERROR (older version, same as below
Lenovo T60 w/ win xp pro sp3 - 14.0.1.286 M011: No error
Mac running xp via vmware: no error
IBM t43 win7 x32 - 14.0.0.163 - error
T61p vista mathcad v 13 - no error
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So as you can see it seems like the problem is Lenovo Laptops with windows 7
and MC14, which makes no sense?
Do you have any ideas on what the issue could be please let us know!
(I will try to update this post with more information on the machines)