I downloaded the optifine fix, and when I load it up, it freezes on the mojang screen. Looking at the log file, it freezes at "Loaded ThaumCraft2" or something like that with no error whatsoever. I'm guessing it fails to load optifine with the patch.
Never mind, I used the one here: http://forums.technicpack.net/threads/optifine-held-mod-blocks-render-issue.17825/ and it worked.