You know what is an incredibly dumbfuck idea? Tying your editor to your content delivery system. I mean, it's not bad enough that you have to launch one memory hogging program just to launch the other, but hey, in case your content delivery program fucks up royally, you can't open up your editor to do any work.
But hey, at least Valve's great customer support came to this solution after exhausting everything they already told me: "Why don't you just delete all your steam and cache files and reinstall?"
*grumble*