Thread Subject: contourfm in v 2008a

Hi,
I have a stand alone executable that was compiled under 2007b. I needed to add a few new things and I'm now using 2008a. While the new things appear to work, a very old one does not. contourfm keeps displaying the error:

??? Error using ==> zdatam at 60
Vector of handles required.

Error in ==> contourfm at 135
zdatam(h,h-max(h));

this error is generated by my code in addition to the simple example below:
figure;
handlesaxes1 = worldmap([29.95 30.4],[-103.4 -102.7]);
gridlat=[29.95:.01:30.4];
gridlon=[-103.4:.01:-102.7];
contourfm(gridlat,gridlon,ones(46,71));

I realize this example will contain only a constant value, but it should still produce a constant color filled plot ontop of the existsing axis.

Thanks,
Margaret