I am trying to do a repair install of Backup Exec 12. I go to Control Panel->Add/Remove Programs amd select Symantec Backup Exec 12 for Windows Servers. There is no 'change' button beside it. Also, if I uncheck 'Show Updates' in Add/Remove Programs, Symantec Backup Exec doesn't even show up in the list. Is there another way to kick off the Backup Exec Repair?