Why the mrt templates in the system couldn’t be applied to the scene in VR?

Why the mrt templates in the system couldn’t be applied to the scene in VR?

http://www.yfcad.com/upfile1/

Answer:
There are several reasons that could be responsible for this:
1. The mrt files are mistakenly modified;
2. Some relevant mrm files in the vrlib folder under the installation directory are lost;
3. If your operation system is Win 7 or Vista, make sure that the “User Account Control
Setting” should be set to “Never Notify”, or the system will prevent the mrt files from
functioning normally.

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