My MacBook is acting weeeeird. Please help.
I have a 2010 (I think) 17" MacBook Pro, running OS X Lion 10.7.4, and everything was going beautifully until about a month ago.
Back then, I was running Snow Leopard and suddenly the computer just started acting...strangely. Programs would just randomly and unpredictably freeze. The computer would suddenly crash. You couldn't, say, adjust the brightness of the screen. It would take 15 minutes to turn on. I figured it was a hard drive problem, but all of the diagnostic software I used said it was fine.
Okay, desperate I figured I'd upgrade to OS X Lion through the App Store and see if that fixed it. And, miraculously, it did - for about two weeks, everything ran perfectly without so much as a hiccup. I thought the problem had been solved.
Until, again, all of a sudden, it started acting weird again. Now it acts weird in very specific ways:
-First off, it will start doing these things completely out of nowhere - unrelated to anything I may be working on or may have done. It will do these things for, say, 15 minutes and then, just as suddenly, unrelated to restarting, hard booting, ANYTHING I do, it will begin working normally again. It is a little bit like the computer just starts having petit mal seizures.
Resetting the program, quitting programs, nothing has any effect on it. It just seems that for, say, 30 minutes the computer is going to be strange.
-During these seizures, only certain programs can be loaded: Chrome, iTunes, some Utilities. Anything else, including something as simple as Minesweeper, will sit bouncing in the dock, waiting to load, forever.
-Certain sites within Chrome, specifically Gmail or anything involving Flash, will spontaneously crash - just the pages, mind you, not Chrome itself.
-Disk Utility and SMART Utility
both report the drive is fine.
As of an hour ago, things have become much worse. I was playing some flash game, left the room for 5 minutes, came back, and now the computer is permanently broken. It no longer fixes itself after 15 minutes and things have become more dire. It will not power down or go to sleep when you close the lid. If you leave it unattended for a few minutes, rather than going to sleep it will show you that grey 'Apple in the center' screen like at startup, completely frozen.
It will still boot up. Unfortunately, Time Machine seems to be a casualty as well and will not back up (I have a backup from about a week ago, thankfully.)
Also, I don't have a boot disc (if I ever got one, I don't have it now.)
This is my first Mac and I am completely at a loss. Any help or suggestions anybody could offer would be a huge help. IThanks