I still may be confused on what you're saying, only because I'm not seeing any anomalies at all on all our test bed platforms, including PC's, Apple MacBooks, Apple iMac's, iPads, iPhones and Blackberry PDA's.
So, just for clarity, are you saying the function of "New Posts" display, as shown in the attached pic, is causing you graphic anomalies on the system configurations you mentioned?
Thanks for the feedback ...
Regards,
Doug