Description of problem:
When trying to navigate the install screens via keyboard, there is no highlight on the additional choices (if any) or on Help when using the Tab key on the keyboard to try and access these.  Even though cycling through the various fields with the Tab key and then hitting the Enter key does work for accessing these additional choices or Help, the user does not know when they can actually hit the Enter key and get what they want since their choice is not highlighted or indicated in any other way.  Not professional and very confusing. 


Version-Release number of selected component (if applicable):


How reproducible:
Always


Steps to Reproduce:
1.  Boot off install DVD.
2.  Look the the "Please Choose A Language To Use" screen.
3.  Before doing anything else, hit the Tab key once.
4.  Notice "Multiple languages" is not highlighted or indicated it is selected in any way.
5.  Hit the Enter key and see that the "Please Choose A Language To Use" dialog box (allowing the user to select multiple languages) does indeed come up proving that "Multiple languages" was selected even thought it was not highlighted or indicated in any way.
6.  Repeat the process above except this time hit the Tab key twice in step 2.  This will show the issue using Help this time.