I have a video capture of a Replay operation that makes Minecraft evaporate, but I can't remember the utility ("Paste Bin"?) that we use for hosting files.
When I got to edit the 'seconds' field on the timeline position of a position keyframe the game hangs. Been seeing it for a while but it became nicely repeatable this morning so I captured it. Twice. I had to redo it because I figured you would want to see the mouse pointer :)
Please post the contents of the fml-client-latest.log file inside the logs folder inside your .minecraft folder to some pastebin site and link to the post here.
Note that this log will only contain information on the last time you started Minecraft, not any previous runs.
Yeah, optifine had issue with hd fonts before which manifested themselves in the Render Settings GUI. That has been fixed with the C6 release though, so this time it's something different.
