Kurenai Ishnoo

I googled the issue but I only find solutions for Windows, and I am using an Imac. Ever since I put on another outfit without changing anything, my client was getting bugged. I would see my eyes trough my cheeks (I use a mesh avi) while others saw me fine. Relogging didn't help. Eventually since I hadn't logged in for half a year I decided to have a clean reinstall. I checked how to do this and reinstalled the Firestorm client and the original Second Life client. Now my avatar looks alright but if I play any other than as low quality as possible, I crash. Also when I hold alt + click to cam around, my camera goes inside the object. When I right click an avatar then I have to hold my mouse or it will automatically click the top option. When I go into mouselook my camera shoots up and I can't scroll back out. I have to press ESC to leave mouselook. It sounds as if it is my mouse acting up, but I only have these problems in Second Life. It doesn't matter which client I use and I have already done a clean re install. I would really appreciate any tips or suggestions because although I can still play SL now it is weird that I am so limited while a few days ago I could zoom around with no trouble and play on almost max quality. Thanks in advance!