Setup new units

Sometimes when I use this option on Land Forces or Air Wings (have not done anything else yet), the map to click their placement disappears. This would not be a problem since you can select from a list, however sometimes clicking the base in the list does not automatically input the text as you would expect. Since you cannot click and enter the text manually you are doomed to start over and pray that that the error does not reoccur...
This happened in IE8, I do not remember if this occurred in Firefox or not as I like to run my Enterprise in Firefox and my Country in IE.

Any ideas why this happens?

this has happened to me as well.... if i close the browser, reopen and try again it has always worked subsequently