GTX 770M screen flickers/framerate issues

Hello. Last week I received my Gigabyte P25W-CF3 with a GTX 770M. I've tried it out on 5 different games: BioShock Infinite, Counter-Strike: Global Offensive, BioShock 1, Diablo III, and Orion: Dino Horde. An issue I noticed that is common across the board is screen flickering during gameplay. Not your standard screen tearing, but rather white lines that flicker. They can be frequent or not so much, and occasionally will subside upon restart for 15-20 min, then back at it. When it gets bad, it affects framerate negatively. Sometimes the screen will just straight turn black 4-5 seconds and then pop back up. This has happened at least once in every game. I have no issues with the onboard Intel 4600 graphics. I am considering having Gigabyte replace my entire unit, as I fear something is wrong with the GPU unit. Drivers are up-to-date and have been reinstalled once. V-Sync has been placed to various degrees of on, off, and adaptive, both in-game and through the nVidia Control Panel. Does anyone have any ideas as far as fixes? Is this common with the 770M?

 

This is really odd. Mine never had this issue. Did this happen with the 337.50 drivers?

 

I am using 335.23, I don't use the beta drivers. The weirdest thing happened though, I booted up Payday 2 without the charger in (first time I have booted up a game without the charger), and it ran flawlessly. Maybe I can just get my charger replaced, if that's the only problem? Although, I'm having nothing but problems with my laptop as it is. I've only had it for 10 days and I've discovered big issues with blue-screening when I plug in or disconnect HDMI, and my wireless card is laughably spotty at best.

 

I think it's better to get a replacement, rather than changing the charger and having other issues later.

 

I think so too. Thing is, the vendor I bought the laptop from doesn't accept returns on laptops that have been opened, so that leaves me to deal with Gigabyte. I have a ticket open with them. Ideally they would replace my unit but I don't know how likely that is. I really want to like this laptop, but these issues are quite frustrating. Downgrading my nVidia drivers did temporarily fix my blue-screening problem, though.