Was watching a video on yt and the graphics got all messed up again. The box where the video was turned pure yellow, everything else was black besides a ghost image of the cursor (both images of the cursor had lines going through them) as well as some randomly placed horizonal white lines all around the screen. The audio worked fine for another 30 seconds or so while it waited even when the screen went black for a moment, then i got a bluescreen message flashed up for all of 1-2 seconds then it restarted itself.
Each time I've looked at the event logs somewhere at the time of restarting it'd say something about corrupt memory, and this is one of the interesting logs I found when looking around this one. The freeze graphic thing was around 3:36, retstart around 3:38, though all logs were at 3:38.
(This was for the information ACEE log)
0000000002: 2010-09-08 15:38:26:029 FAILED:ADL_Display_SLSGrid_Caps and return value is: -1
Error Called by: ATI.ACE.CLI.Caste.Graphics.Runtime.RT_GraphicsAdapter_N::CheckSLSSupported processID:02848 threadID

CCCThreadNew:Runtime) domainName

CCC.exe ) assemblyName

CLI.Caste.Graphics.Runtime, Version=2.0.3748.36826, Culture=neutral, PublicKeyToken=90ba9c70f846762e)
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and this happened yesterday, I've found a fair few other mentions of corrupt memory in other logs when I looked around, could this mean anything for the graphics spazzing/rebooting?
The platform firmware has corrupted memory across the previous system power transition. Please check for updated firmware for your system. (Was in admin events, under HAL at the end)
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EDIT: this was happening with my other graphics card I got about 3 weeks ago, so I returned it and got another one TWO DAYS AGO. I also uninstalled the driver it came with and I isntalled, for older version attempts on the ATI website. All 3 4 in total that i've tried have had the same issues. 10.7, 10.8, 10.6 ( i think) and I tried like 10.4 or something recently for good mesure of really DOWNGRADING. All end up eventually having the same problems. I've got 5 fans running, and I don't even hit 50% cpu on my computer normally, so I really doubt it's overheating, though I can check if you like and it'd help. And everything i'm working with, especially the GFX card is VERY new, so I'm sure it's not a problem of age either. Hope that cleared some things up, lemme know what I can do to check around for things to help solve this with next.
(Note): My old gfx card/other driver updates had a different freeze style, it'd usually just outright freeze (this one has once, but the others more so) and the freeze would usually just freak out with graphics spazzing all over the place for java gfx, or for something like starcraft 2/youtube it'd do the thing that happened on this one. Does the different types of graphical errors mean anything? I can explain them more in-depth if needed.