I have a MacBook with OS 10.5.8 and recently updated my Adobe Reader to 10.1.5. But it is recommended with this operating system to have Adobe Reader 9.3. I tried to change, but the download would not work because I had a later version on my computer. My questions are 1) should I try to change to 9.3 ?(what is the difference?) 2) if so, how do I do this? and 3) is there any chance that this is why I can't get audio on YouTube? I am stuck with an older Firefox 16.0.2 that can no longer be updated with my operating system.
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