I've got Pixar RenderMan 4.5, and it works a treat on Maya 4.0 but I can't make it work in Maya 4.5

Any suggestions?

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-DX-

You need 5.5 to run in Maya 4.5.

Darkon

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Red bellows of flame have blackened my stones
Convulsing my frame and cracking my bones
Hell's dragons of steel who roar in their chains
Crawl into my caves to suck out my veins.....

-The Mountain P.F.M.