My friend tells me I am really blurry videochatting over iChat. Nobody else complains about this but this one person. I asked her to go to speedtest.net. Her upload speed was one third of mine and her download speed was over ten times slower than mine. She comes in blurry on my end too. She is also not using a Mac. With the provided statistics, is it logical to assume that the blurriness problems are on her end and has nothing to do with me?