I have recently had the problem of having flashing chunks when using the optifine mod. I know a few other people who have this problem too.
There is a simple fix for this, for those who need it. It worked for me, at least.
Open up your graphics card control panel.
To get to the graphics card control panel, look here:
(Excuse my love for english bulldogs )
http://i.imgur.com/IeijukL.jpg
Now, in your panel, go to 3D Settings.
Then make sure you are on the 'Global Settings' Tab.
Now turn 'Threaded Optimization' or 'OpenGL Optimization' to off.
Then turn 'Vertical Sync' to on.
Here is an example:
http://i.imgur.com/cWW9TRR.png
I hope this helps anyone with the problem.
Thanks
There is a simple fix for this, for those who need it. It worked for me, at least.
Open up your graphics card control panel.
To get to the graphics card control panel, look here:
(Excuse my love for english bulldogs )
http://i.imgur.com/IeijukL.jpg
Now, in your panel, go to 3D Settings.
Then make sure you are on the 'Global Settings' Tab.
Now turn 'Threaded Optimization' or 'OpenGL Optimization' to off.
Then turn 'Vertical Sync' to on.
Here is an example:
http://i.imgur.com/cWW9TRR.png
I hope this helps anyone with the problem.
Thanks