My MacBook just randomly started failing, it freezes when I try to turn it on, takes forever to get to sign in, and if it does log in, it freezes every few seconds for about 30 seconds each time. Usually it doesn't even get past the login screen. When it started~ I was browsing the internet on sites I've always used before (for years) and safari froze, which was only open application. Being that it froze for about 1 minute and still didnt unfreeze, I found it unusual. I force powered it down since force quit didn't work. When I turned it back on, it went verrrry slow, took about an hour to get to login screen. I logged on on safe mode, and couldn't find the problem. It still went slow in safe mode. Basically, my computer acts as if it's only 100mb of ram -.- Any way I can fix this issue? Please help!