After updating to Minecraft 1.7 and updating Java x64 to 1.7 as well, I began encountering a rather odd graphical bug while playing. There's a 1px gap between ALL blocks and a 1px "cage" of sorts around torches. I can't figure out for the life of me what's wrong. Anyone have ideas?
I have Anti-Aliasing off in my graphical settings because some of my games don't place nicely with it. With Java 6.23 x64 installed, the game crashes immediately upon starting, I can't even get to the "updates review" page.
I appear to have fixed it by fiddling in my nVidia Control Panel settings. I hate it when things like this happen, but it's good that the fix wasn't overtly difficult. Anyway, I'm in good shape now, so thanks for the help Jop and Wemlizz.