As Joe also said, don't rename your user profile. Windows will not like that at all. Instead, it is better to make a new profile using that name and just switch to that. But the desktop is really no good place keeping these files, so doing that is more a band-aid than anything really. As Joe suggested, it is better to fix the problem.

The command Joe mentions is documented in the Blog article, under the heading "Four B – Fixing the Map", under the subheading "Everything at Once" (But I recommend reading the whole thing, don't just that section)

As for symbol catalogs, you don't normally import those into your drawing. You open the symbol catalog in the symbol catalog window using the :ICON_CATALOG: button, and simply use the symbols from there. Symbols will then be imported into the map one by one as you use them from the symbol catalog (But do note that symbols are indexed by their name, so if you have a symbol with a certain name already in your map, it will use that, even if the one in the catalog is different but with the same name)

Red X'es like this means that CC3+ isn't able to find external art files referenced from the map file.

Check this blog article for details:

I agree with Sue, for a b&w printed book, a nice and clear black and white style usually gives the best result.

The only way is really to just load them up in the house style editor [HOUSEOPT] and look at them one by one.

To quickly look through them without clicking yourself to death, take advantage of the fact that Windows GUI components are keyboard friendly. Simply use the top dropdown and click on the very first style in the list to select it and collapse the list, then as long as you don't click any other controls, it will be the active control, and you can go through the styles using the arrow keys.

Thanks @Wyvern , maps have now been added to the atlas