NC Launcher wont open COH
atioglxx.dll is ATI/AMD's OpenGL driver. It means you need to update your video card drivers. Go to www.amd.com to get the latest drivers.
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Just a note Tex, I was receiving the same crash "Quiting to Character Select" last night with the latest drivers.| atioglxx.dll is ATI/AMD's OpenGL driver.  It means you need to update your video card drivers.  Go to www.amd.com to get the latest drivers. | 
Something in the last patch isn't playing very nice with ATI 11.9. It isn't as bad as pre 11.9. But something is in there.
I have updated my drivers and it is still not letting me open it.
bump
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It's still not working.
        | atioglxx.dll is ATI/AMD's OpenGL driver.  It means you need to update your video card drivers.  Go to www.amd.com to get the latest drivers. | 
	
There is another thing to try that might fix your problem.  Admittedly, it was for nVidia users that would get stuck at the loading bar...  But I think it might fix you up.  And it shouldn't cause major problems if it doesn't work.
Give this a try:
	
	
        
Give this a try:
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	| "I would like to have the graphic shader files rebuilt on your system. To do so, please delete the "CoX" folder located, by default, at "C:\Users\YOUR USERNAME\AppData\Local\NCSoft" and try launching City of Heroes again. If you are unable to see this folder, you may have "Show hidden files and folders" disabled." | 
	
Nope, still nothing. There was no "CoX" Folder in there hidden or otherwise. I reinstalled COH if that's what your talking about.
        
Then I would suggest you try contacting tech support at one of the links in my signature.
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Did you ever get a resolution on this? I just started having this problem after the Beta Client forced me to update my graphics driver because it wouldn't run. (It actually popped up a window and told me I HAD to update the drivers.)| NC Launcher wont open COH. Every time I click "play" it shows the loading bar and then the game crashes and an error report pops up. "The crash occurred in atioglxx.dll." Not sure what this means, but I have uninstalled by the launcher and coh twice to no avail. | 
I have installed several versions of the catalyst driver.. 11.7, 11.8, 11.9 11.4 and even 11.10 beta to no avail. A search for atioplxx.dll on the AMD site returns nothing (I don't know if the xx is a placeholder for a version number or actually part of the name).
I have had to go back to my old laptop and play on that.. it's ticking me off!
Any help would be appreciated!
Thanks
You don't hit smiling monsters - Sister Flame

NC Launcher wont open COH. Every time I click "play" it shows the loading bar and then the game crashes and an error report pops up.
"The crash occurred in atioglxx.dll."
Not sure what this means, but I have uninstalled by the launcher and coh twice to no avail.