Any dialog box that opens up & not only from the LW preferences like the warning you get when you're unticking player option, or the odd occasion the Bug report, but also warnings about corrupt files or such things .. can't think of what they all are at moment. The dialog boxes that are generally a warning about your selection or warning about 'something'. These can often just sit there & clicking the yes or no or red icon for close the dialog don't have any effect for a few mins. This has been an issue for a long time .. at least going back to LW 4.1.x I'm refering specificaly to OSX here, not windows. There might also be the window turning white for some seconds. The dialog box issue happens once in a while, not everytime I use LW. Might be related to VM I don't know. I save my files to a different partition than the OS. I have 5 GB available. (Actually that's 8 GB with no programs running.)