Ive had this issue sence I got the game back in 1.2.8 I think, and I never bothered to report it. Ive searched it, and I can not find it anywhere... I have these giant lines/squares that cut off my vision depending on which way I face, and it changes all the time... Also my signs and chests turn with my screen, and are blue. One more thing, mobs are only shown about half the time I load up the game, and when they do show, about an hour or so later, they disappear... pictures bellow
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Is your graphics driver up to date? Do you have any mods installed?

Please update your Java, the on you use is outdated.
And please press while in game F3 + C for 10 seconds for a forced crash and attach the resulting crash report here.
This is a problem with your client/computer.
Invalidating this as your client is modded.
Please try to update your graphics card drivers
crash report
drivers updated
java version updated; no change in gameplay :/

This ticket is invalid as it relates to a modded or 3rd party client/server.
Any non-standard client/server build needs to be taken up with the appropriate team, not Mojang.
Any plugin issues need to be addressed to the plugin creator.
This site is for addressing issues related to the base unmodded MineCraft.
can I just uninstall the mod, and post new screenshots? Because it has the same problems w/out mods...

Do some screenshots with vanilla minecraft and attach a new crash report with F3 + C
last picture shows a chest on right and sign on left of crafting bench
new crash report

Update your graphics card drivers.
Your's is showing Open GL 3.3, but current drivers for your card have Open GL 4.2.
Otherwise the Mojang Support Center has links providing more help.