Was working great until I updated to 5.0.3. As soon as I open a project I get a spinning circle along with (Not Responding) notice at the top. After waiting 10 minutes to see if it would respond and nothing happening I force quit the program. I've tried restarting the computer, opening up different projects, starting new projects and running the updater again. Still can't get it to work.
I don't think it's a hardware issue since it was running great prior to the update and this issue occuring immediately after the update.
Eric at ADK actually resolved this for me. I hadn't uninstalled the previous driver for the quadro 5000 card when that driver was updated and premiere was having issues with the multiple nividia drivers so it was really an nvidia issue. He unistalled all the previous drivers for the quadro and that fixed the issue.
Can't say enough wonderful things about Eric and ADK. Very friendly and patient but most importantly knowledgeable.
Great news. Eric gets lots of high marks around these parts.
Glad that it got handled, and good luck,