Is there any specific reason why an OS re-install would be the issue/resolve?
The simple answer to
THIS would likely address any reasons for complete re-install (corrupted registry, etc...).
I did do a re-install to the same results. I likely will do a system restore back to 10.2. Don't know why I thought something better would come out of upgrading, but I did it. As has been said many times within: don't mess with a stable system. Sadly, 10.3 has been chock full of issues.