Graphics glitch Mountain Lion MBP

Question

So I loaded Mountain Lion on my late 2009 MBP and while the computer was fine before the upgrade, afterwards is a different story. Despite the fact I have 8GB of RAM, it seems to be sluggish, but the main problem stems from the graphics on the display. When I go to use any two-finger gesture (about 70% of the time) the screen will flicker and then "tear" and show portions of the screen in random places, if I don't touch it or restart it, it will change to the "snow" or static fuzz look.
This happened shortly after I bought the computer, which I took back to Apple and had them replace the NVIDIA graphics card and I've been fine since. Now the issue, with the newer card, only 30 mins after installing Mountain Lion, has come back.
This graphics card is one of those dual cards, the one that allows for better battery life or better graphic performance.
Any suggestions?

Answer 1

I decided to call Apple Care, the first person (girl) was very helpful, she had me reset my PRAM, do a disk repair and even a full reinstall of Mountain Lion. She told me that if after the install, the problem still persisted, to call back (as she had given me 90 days of support for Mountain Lion). However, when I called back, because the issue still kept happening (surprise), I got a guy, who barely spoke english, which was the first time this has ever happened when I've called Apple. He was very rude and didn't really seem to fully understand what I was trying to explain to him, regardless of the fact that my entire case was on the computer in front of him. After explaining to him that I had one logic board fail over a year ago, that had since been replaced, my computer had been working fine, that is until I installed OS X 10.8. He said that is impossible as this is a hardware issue and Moutain Lion is software. After trying to explain to an "Apple" rep that the software in Mountain Lion contains drivers for "hardware" and that, that could be the issue, he refuted the possibility. I then pointed out that I've posted on the Apple support forums....want to know his reply, you'll love this.
He said and I quote: "We" [Apple] don't reference or acknowledge the forums for issues like this, because our competitors can change their names or make accounts and post false information in our forums, attempting to degrade our products and make us look bad."
Can you believe that?? So regardless of the fact that my logic board has now failed twice in 3 years, he tells me since I don't have Apple Care extended support, I'll have to pay out of pocket. Frustrated and annoyed by the most unprofessional Apple rep I've ever encountered, I hung up the phone and will be making a trip to my nearest Apple retail store (an hour away) this evening. At least I'll have someone who speaks english and I can actually show them the issue first hand, as the computer can't go more than 5 mins without the glitch showing up.
To see if you are having similar issues: Go to YouTube and type this in exactly (or copy and paste it)
"MacBook Pro graphic issue after Mountain Lion install" minue the quotes. It will be posted by me, mtwewerka.
I just thought I'd share this issue with the CSR at Apple with you all, oh, he also said he has never heard of this issue. He said since ML has been released, he's been taking calls for days and I'm the first person that's reported this problem. After reading all of your responses, I can only assume he's lying. However, in case he isn't, if you haven't already, I highly recommend you call Apple at 800-APL-CARE and tell them of your issue so we can get this noticed by a few representatives. Seeing how I run my own tech new blog, believe me, I'll be spreading the word...just not with the same level of hostility as I am on these forums.
Mike Wewerka (aka Michael Blake)