i have an issue with safari's embedded PDF viewer. nearly every time when i open a PDF with safari and i move my mouse over the window, the cursor begins to flicker. the same thing occurs when taking a screenshot with CMD+Shift+4 and moving the cursor. weird thing, half of the time it doesn't happen. a detailed explanation can be found here. the issue occurs with the example PDF linked there. i use Mac OSX Mountain Lion 10.8.2 with Safari 6.0.2. anyone knows a solution?