Load Disk 1 (West) on your computer, it contains the operations language for the software package. East and the Alaska/Hawaii disk just contain maps
Then go to the Map Source update link and update the software you just install. You can create a folder in My Documents called Map Source Updates and download it to that location. Once it is downloaded to the folder double click on it and run it. I like to keep a couple of updates saved in My Documents incase Garmin has a glitch in the latest release and I can go back and fix my Map Source.
Download the Patch and install on computer.
Download USB drivers and install:
http://www8.garmin.com/support/agree.jsp?id=591 on computer. You need to have the drivers installed so your computer will talk to your gps.
If you are using a computer that has an operating system other then Windows XP, or Vista you need to let me know, because you will need a different software download.
Life gets a little complicated if you try and load all three disks. You have not identified what part of mother earth your are located on so I need to make some assumptions. On my primary computer this is how I operate.
Disk 1(West) is saved to my hard drive.
I put Disk 1 in my CD driver when I want to boot up MapSource. This works for me because most of my activity is in the West. In the upper left corner of the tool bar is a drop down box. If you want to switch to Disk 2(East) click on it and select East. You can then insert the disk US Topo-East or wait until you get a pop-up instructing you to insert it. (If you have not downloaded and installed the PATCH you East disk will not work correctly.)
The next time you open MapSource it will default to the last disk or MapSource Program you used. If it was East then you need to put the East CD in your drive.
The nice thing about US Topo 2008 is that it is on one DVD and when you load it on to your hard drive you do not need to switch CD’s for different parts of the country. Frankly because I use the West 98% of the time you will find the West CD in the drive.
I also have City Navigator V8 loaded on my computer and I do not need to use the DVD when I want those maps. I just select it from the drop down box in the Tool Bar.
I do have all three CD’s installed on my laptop but it is a pain to do so. I had to fall back and have my wife help me that one. So I will not be covering process.
Let me know how you are doing.