The VideoLAN Forums

I've got it. It works. You're brilliant. Many thanks

Many thanks. Look forward to that. Will report back

I've also tried reverting to an earlier version of VLC. I uninstalled VLC 2.1.3 (64bit) version and installed 2.0.9 (32 bit) version wondering (though I have only the haziest understanding of these things ) whether 32bit v 64bit was a possible cause of the problem. Sad to say the error messages kept...

No and no.

Thanks, but deleting preferences doesn't work. You say you had a problem: was it the same one as described here, or something different?

Yes, the files play ok. You just have to keeping clearing all the error messages, which is a chore.

I posted a question on Apple support and got this reply: " The OpenGL version is dependent on video hardware, not OS version. I think VLC is assuming otherwise and reporting that error when it finds Mavericks with OpenGL 3.3 instead of OpenGL 4.1." Which is a bit out of my depth - but perh...

Done that. Didn't work

I'm having the same problem - but it only happens with VLC, not with other players such as Quicktime or MPEG Streamclip. I have tried the various suggestions made in this forum but to no avail. I am using an iMac (mid-2007) with 2.4 Ghz Intel core 2 duo processor with 4GB RAM running OS 10.9.1 Maver...