Lowrance map question/help!!!

[volfan]

I have a Lowrance lms-320. I bought a blank 1gb mmc card to load a free map from www.lowrance.com. I can see the file on the mmc card, but my depthfinder doesn't see it or I'm not holding my mouth right. If anyone has done this before, please help. the file is 1500kb in size.
Thanks in advance.

[Phantom309]

Yep, me too !
I downloaded a free lake map/w/contours, put it on my card, followed directions, and NADA.
I just forgot about it cause I'm pretty much happy with what I've got and don't won't to mess anything up (if it ain't broke, don't fix it) etc.