Guild Wars 2

Hello,

since i updated to OS X Yosemite, i have been experiencing severe screen flickering/segmentation. I did not experience this problem in OS X Mavericks. It’s severely segmented as the image below shows & flickers and blocks the camera, when it is moved. It makes playing practically impossible.
Not only that but since i was recently diagnosed as an epileptic it also affects me adversely in that way and irritates me severely.

I love this game and want to keep playing my favorite game. i have been looking into bootcamp as and alternative; but i currently have no means to purchase a legal win-key.

Please look into this? Any suggestions to reduce this visual bug to minimally affect my gameplay are welcome.

Much appreciated

My Specs
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iMac (21,5-inch, late 2012)
Processor: 2,7 GHz Intel Core i5
Ram: 16 GB 1600 MHz DDR3
Graphics: NVIDIA GeForce GT 640M 512 MB
OS X: Yosemite 10.10.5
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EDIT: i will also apply a ticket for help.

Try to play on intelHD and check if you still have this problem. Can you please post update results here?

Just to add to what Talek has said. It’s possible that it is something to do with the Nvidia card. So you could try playing the game using the Intel graphics card. However you would have to download third party software to do this as OSX doesn’t have any way to force the use of the intel card (though you can force it to use the nvidia card).

Thank you for your answers, but i have no idea how i would manage to do that.
What program specifically would i need?

Edit: from what i can tell, by googling your suggestion, there is no way i can switch to intelHD as i am on an iMac (As a desktop doesn’t have need for battery preservation, since it’s on ac power.) i found a program called “gfxCardStatus” but it appears not to be working on my mac.

Support helped me out, it appears to be the reflections that were causing trouble for me.
Ty for the help