That sucks... I recently upgrade to OS X 10.10 and it was issue free...
Something to think about.
There are things I don’t love about OS, but boy am I glad it isn’t Windows! I have a Macbook and an old PC. I was forced to switch to 7 on the PC earlier this year and now it runs like crap. Every time I look down and see that annoying “switch to 10” spam in my tray, it reminds me that my home will soon be Windows free.