Renderman And Turtle Not Found

[grobbio]

Just installed Maya on a SUSE 10.3 rendering machine. And when I Render a file, it quits with

Error: Line 1: Plug-in, "RenderMan_for_Maya.so", was not found on MAYA_PLUG_IN_PATH,
Error: Line 1: Plug-in, "TurtleForMaya80.so", was not found on MAYA_PLUG_IN_PATH,
maya encountered a fatal error

these errors are ignored on other OS machines, how do I tell linux to ignore them and keep rendering?

Thanks!

[grobbio]

note to others: SUSE doesn't work. Fedora 8 and Maya8.5_x64 sp1 live happily together.