Ok, now then, does anyone know a short cut for me to get my back button back?
Because you mentioned it on the other thread I know you are using safari, but just telling us that it's a mac computer doesn't tell us what browser you want the back button (assuming once again it's that back button you are talking about ) options for.
In any case, this should work depending on your version of Safari (works on my version):
View > Customize Toolbar
Then just drag whatever buttons you want to the toolbar, you can also drag a "default set" that will restore all the default buttons.