In OS 10.6.8, whenever I had a delay in playback from the Source to the timeline, I would delete the preferences file.
After upgrading to Mountain Lion, this file appears to be hidden. Where is it located ? I also have a custom keyboard file called "custom.kys". I can no longer find this either ?
Open Your Finder, Hold OPTION and CLICK on "GO" from your top menu in Finder. Select Library.
Go to Application Support > Adobe > Premiere Pro > 6.0. The custom keyboard list will be located there.
To trash your prefs do the following. When launching Premiere Pro hold down Shift+Option. This automatically throws away Premiere’s preferences.