I have an older Lowrance chart plotter, 2007, and I just found out that they won't accept any SD cards that are larger than 1 gig. This pretty much rules out using any of the newer cards for anything on this unit. I have been looking all over the place on the internet for an Inland Lakes map that will work in this unit and I'm not having any luck. Has anyone else run into this problem and if so what did you do to get around this. The older maps on these 1 gig cards are virtually impossible to find.

Thanks