I am experiencing an odd video glitch in Safari. Here is the situation......... I open up Safari, top sites is loaded, I select a website to go to. Then, when I am done with the current site, I select the top sites icon to go back to the top sites page to select another website to visit. When I do that I get this odd video glitch. The iMac (2.7 i5 27") is a little over a month old. Bought at Apple store after Lion came out but have not installed Lion (I have downloaded it though onto a USB drive). Safari is 5.1 and OSX is 10.6.8 I have attached a still of the glitch. I am not sure how to upload a 4 second short video. Here is the LINK to the video to see the glitch take place. Any idea what this is, how to fix, etc? Thanks for any replies in advance!