Here's the guide in case anyone needs to know what i'm looking at
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I'm skipped over the part of installing the toolkit and the SDK because it said it was only necessary if I wanted to build an application which is beyond my capabilities at the moment. I'm to the part where you run CUDA by typing ./CUDA-Multiforcer. Upon executing it I receive the following error:

./CUDA-Multiforcer: error while loading shared libraries: cannot open shared object file: No such file or directory.

I've googled some and searched this site, not turned up much. One link from Google suggested I edit "" in the /etc dir and add to it. I wasn't sure if that would help me or not, but I did look in that file and the only line it has is "include /etc/ /*.conf"

I'm a bit stumped - what I have done wrong?