I am using a MAC and when i install MapInstall and try to open it it doesn't show the continue button that i need to hit to move forward. Please Help!
I am primarily a Mac user myself (since 1985!), but when it comes to Garmin I use Windows. They get points for offering Mac versions of their software (unlike Magellan or DeLorme), but there seem to be a lot of issues.
I can't help with your problem, but I suggest you visit Garmin's own support forums. If you can't find an answer there, post a question. The software developers themselves are very active and helpful in the forums: https://forums.garmin.com/forumdisplay.php?f=167