I'm having difficulty getting the list-of-listings section to display the proper title, it simply says "Contents" no matter what sort of changes I make. Here is the command I put in the preamble at a suggestion:

here is where I include the list of listings

but here is the listings page title...

and if it's relevant here is the output of a sample listing in my document:

to input the listings I am using insert-->Program Listing. I've googled a bit and searched around here but couldn't find anyone with a similar problem.. Any help is appreciated.
Edit: An attempt at a minimum nonworking example.
I'll do my best to make this helpful, but as I assume that I'm simply using the package incorrectly I'm not sure if this example is properly called 'nonworking'
Screencap of example (here I have made no changes to the preamble, everything is defaults)

and its output:

Now when I add the suggested line to preamble:
\renewcommand{\lstlistingname}{Matlab Code}
the output is identical.
.lyxcode to.texand posting it on PastBin. That way community members could import it again and try to duplicate your problem. – Werner Feb 19 '13 at 18:45matlab-prettifierpackage; see this answer. – jub0bs Apr 28 '14 at 15:46