I had 4.6.7 running this AM and had problems applying a stationary pad to selected images. After selecting a series of images and hitting command-i, filling in the stationary pad then selecting Apply stationary to selected, the process would run very slowly. Once finished I would check to see if the application "took" and it didn't. If I repeated the process at that point it would run really quickly and the stationary would "take".
Is this a problem with Lion and 4.6.7? I have recently upgraded to 4.6.8 but have not had a chance to test.