Ok .. now in addition to disabling the firewall and killing my anti-virus, I have searched for fixes for the 1603 error; none of which applied to me; run a repair on my framework 3.5, cleaned every single vague reference, including my plugins off my machine, and banged my head against the wall.
I am out of ideas..
I just got home from a trip with 1200 photos that need editing and l am really unhappy - this couldn't happen at a worse time.
Is there any way I can get an old version that I might be able to install?