Screen flashing and freezing.

Hi!

I recently had to reinstall 7, because the computer kept crashing in the middle of the simplest things. Say, I'd be reading a Wikipedia article, or watching a YouTube video, or playing a game, and the screen would all of the sudden start flashing for a few seconds, then it would just go black (70% of the time.) On occasion, it wouldn't go black, but instead becomes the color of the most prevalent color on the screen. Ex: I was playing a game, and took a look at the map, which was mostly yellow. At that moment the screen would become yellow and freeze, not letting me move my mouse or CTRL+ALT+DEL. Sometimes a blue crash screen would appear, sometimes it would just restart on its own.

So, anyway, I realize reinstalling Windows has little to do with the above problem, but I was hoping it would fix it, and also I needed a new start, since my organizational skills were pretty bad before. Once reinstalled, I had updated almost everything possible, via Windows Update, or manually.

At first, I thought my wishes were fulfilled, because my PC was running faster and more smoothly than ever before. (I did have a little hiccup with sound card, but that's behind me now.) But, no. The black screen happened again today. That was such a low blow I wanted to jump off the balcony... I decided that the only thing I haven't updated was the BIOS, and, true, it was last updated in August 2010, 3 months before I got this PC. That hasn't helped one bit - screen's still flashing and freezing.

Also, I've just noticed that after a few flashes the computer doesn't freeze at first, but the mouse pointer either disappears altogether or becomes thin vertical dotted line. But it still freezes after a few minutes. That's something new, but not an improvement. Hopefully that helps you...

You can probably find out my system specs in the BSOD report I provided, but here they are anyway:

CyberPower PC Gamer Ultra GUA 260
OS: Windows 7 Home Premium SP1 x64
Motheboard: ASUS M4N68T-M V2 (ASUS - Motherboards- ASUS M4N68T-M V2)
Processor: AMD Athlon II x4 640 3.00GHz
Graphics Card: ATI Radeon HD 5670 (ATI Radeon)

I'm angry, I'm tired, and I just want to put this whole thing behind me now. Please help me do just that.

PS: It just happened again. A quick flash or two, mouse pointer becomes a dotted line, and screen goes white (doesn't happen a lot, but has before) after 1-2 minutes. I was running 16-bit True Color this time, but apparently that makes no difference.

First please update your system profile specs using this

Second you have posted... two bsod.. one related to AMD processor and the other graphics TDR... and based on what you say above.... try reseating the cards and let us know how that goes.... or better still.. try removing the ATI Radeon and using the onboard graphics and check if it still flashes.....

Done, and..

What do you mean by resetting the cards? Uninstall them? And every time I uninstall Radeon, it reinstalls the drivers again as I reboot the PC.

By the way, I don't know why it posted two BSODs, I've done everything according to the instructions.

Please help a noob! Am I doing right things or not? I just uninstalled my Radeon HD, so now it's running on 'Standard VGA Graphics Adapter'. The graphics have suffered, and I'm running my screen at 1400x1050 (highest available). What now?

Sorry, I'm very nervous, I hate doing things I'm not good at...

I said reseating .... means... remove the card and put it back in again... and if there are any dust.... clean it using a blower or vaccum.....

But before you put it back... test your system for BSOD with the card not installed (physically) and use the motherboards adapter to connect your monitors.... if the system goes without a BSOD ... then go ahead and put the card back in again making sure the its held properly in the slot and install the latest drivers and check again....... let me know how this goes.