Messages

I am using Windows 32 bit.
I should have memory, I only loaded 4 sections of the map.
I just bought the Etrex,  I have saved very little.  how do I check the memory?

I can't find anything in the forums that addresses this problem.
I just purchased an Etrex Venture HC with MapSource 5.  I loaded NE USA TOPO PART 1 from GPSFILEDEPOT and it worked great.  The maps were a quantum leap better than the Garmin base map.  But after three days MapSource stopped completely despite many attempts to reload it as directed.  I downloaded MapSource 6.16.3 and that worked, but it prevents me from loading anymore of the NE USA TOPO PART 1 map sections.  Nothing shows up in the map window where the section list used to be when I select the correct map from the map list.  I can continue to use the four that were loaded into the Etrex earlier, but cannot continue to load anymore of  the topo map sections for the state of Michigan.
Is there any way to load your maps into the Venture with or without MapSource?
I use Windows 7 if that makes a difference.

I am looking to buy a small GPS for my camera bag.  I settled on the Etrex Venture HC.  I specifically want TOPO maps of Mackinac Island, Michigan.  I tried the search feature, no luck.  Does anyone know if Mackinac Island shows up well on the Michigan Topo maps listed on this site.  Or is it available elsewhere?
Thanks.
I found that MAPS4GPS map (http://www.gpsfiledepot.com/maps/view/154/), sounds perfect, but I am unclear if it will work with an  Etrex Venture.  Can anyone verify it will before I buy the Venture?  And does it include Mackinac Island for certain?
Could I verify the coverage by downloading to my PC?