I open up any modpack an it ends the letters bieng backwords and upsidown

[ATsipour]

Launcher Version: newest

Operating System:mac osx 10.7.5

Java Version: newest

Antivirus Program:

Description of Problem:

the letters become upsidedown and backwords its really annoyning me

Error Messages:

Error Log:

[Munaus]

Switching to fullscreen helps

[ATsipour]

When I do this It still does not work

[Munaus]

Try updating LWJGL, I heard that might help.

[ATsipour]

I updated to 2.9.0 still does not work

[MaxHawkes]

Of course, It would be more helpful if the actual thread itself explains it,

Operating System: mac book pro, That's not an operating system, Go into the apple symbol and click about this mac to get the Operating System,

[CanVox]

Hello, install the OSX "Mavericks" update, that will fix this issue permanently.