Problem With Gb Import, Inaccesible wav and aiff files Options

[musicdrjteach]

Having a bit of a problem using GB Import with my Prosample files. I place the wav sample files in the sample folder in the Library and drag the .exs file into GB Import. Each time it tells me it can't find the samples and asks me to point to the file location, I only have greyed out (not selectable) .wav file choices. I'm new to it, but it didn't seem that it should be that hard! Any idea where I'm screwing up?
Help me Mr. Wizard!!!!!

D. Jones