I installed osx lion on my MacBook pro and now every single time I turn on my computer after I sign in I get a kernel panic. I have no idea of what to do I fixed the partitions and that didn't work I tried to install my original snow leapord and it says I can't install mac Osx, I can still sign in on safe mode but I have no clue of what to do. Someone please help I desperatly need the comp back to normal for school thanks!