Windows 7 sees dwg files as pdf

My computer sees all my dwg files but tries to open them as a pdf file.  I have tried to change the association to Draftsight, but it does not see Draftsight as a program.

I can open all the files after I open Draftsight, but I would like to be able to open from the file folder as well.

What do I do so I can open from a file folder?

 

Thanks,