A Mac user recently contacted The Guru regarding Mouse Pointer problems which had started earlier in the week. Since I have really no idea what is causing this and also since I am not a Mac user, I am re-posting their contact in hopes that one of our readers will have an idea as to what is going on. I am using Firefox 7.0.1 Release Update Channel [Mozilla/5.0 (Macintosh; Intel Mac  OS X 10.7; rv:7.0.1) Gecko/20100101 Firefox/7.0.1]  on a MAC PRO. NOTE: This issue does NOT affect SAFARI web browser. Safari works fine. This issue concerns only FIREFOX. Problem: 1….