If you've been experiencing issues downloading components, your troubles are over. We have found and corrected a bug that was causing that to happen in certain cases on bot the Mac and the PC.
Make sure you've got the latest version of the plugin so you don't experience this bug. To do that, if you're on Sketchup 2013 just to to "Extension Warehouse" within Sketchup and find our plugin. From there, instead of the "Install" button you'll see one that says "Update". Choose that, restart Sketchup after it's over, and you'll be off and running.
If you're on Sketchup 8, just download a new copy of the plugin from our download page in the link below, run the installer and you'll be all set. You won't even have to log back in again!
http://sketchthis.net/plugin-for-sketchup/plugin-download/ As always, if you need any assistance, you can go to our site to get any support you need.