Why does my minecraft crash when i go to spawn?

I play on multiple multiplayer servers on minecraft. On one of the servers I died, and obviously I respawned at the server's spawn. The only problem is, is my minecraft crashed the second I was placed into the spawn. This had never happened before. So after a couple of attempts of logging into that server and my minecraft immediately crashing I gave up. I went to another server and when I went to spawn, the same thing happened. It is extremely frustrating. After this I'm going to attempt to allocate more memory to my minecraft and see if that helps at all. If any of you have any more suggestions then please tell me.

What I have done so far:
Changed texture packs
Turned off all mods, including OptiFine
Deleted my.minecraft and redownloaded it (I backed up all my texture pack and mod files)
I'm about to allocate more memory.

Guest

Here are some fixes
IF YOU HAVE A MAC
In the Finder on the Mac, go to [your login name] /Library/Application Support/minecraft/versions/
delete the 1.6.4 folder
start the launcher -let it download and install 1.6.4

IN Appdata Delete minecraft out of that folder

Try re-installing the server file (Minecraft_Server.exe), and if it is a Bukkit server try re-installing craftbukkit.jar

AND LAST

Troubleshooting Instructions:

Delete the Contents of Bin Folder
Clean your Registry
Update your Graphics Card Driver
Reinstall Minecraft
Update Java
Run Minecraft in Compability Mode

Delete the Contents of Bin Folder

To fix Minecraft keeps crashing close the game and delete all the files and sub folders in the Bin folder in the Minecraft installation directory.

Click Start | Run.
Type the following:
%AppData%
Press ENTER.
Double click to open the following directory:
Minecraft\Bin
Delete all the files and subfolders in the opened folder.

Clean your Registry

Registry cleaning is essential. Delete the broken and junk entries in your registry in order to fix Minecraft keeps crashing. Download a good Registry Cleaner and PC Optimizer software to fix the problem within few seconds.

Update your Graphics Card Driver

Download and install the latest updates for your graphics card. This will improve your graphics performance and thereby fixes Minecraft keeps crashing. Visit the website of the graphics card publisher company.

Reinstall Minecraft

Reinstalling Minecraft may fix Minecraft keeps crashing issue. The steps require to reinstall it are as under:

Click Start | Control Panel.
Click Programs | Uninstall a Program.
Select Minecraft from the list of installed programs and click Uninstall button.
Follow the wizard and restart the machine when it is completed.

Update Java

Minecraft requires Java to be installed and updated regularly. If the version of Java installed on your system is outdated, then update it and then run Minecraft game again if Minecraft keeps crashing.

Run Minecraft in Compability Mode

If the Minecraft keeps crashing run it in the compatibility mode. The required steps are discussed below:

Right click Minecraft desktop shortcut and select Properties.
Click Compability tab.
Mark the box Run this program in compability for as checked.
Select an earlier version of Microsoft Windows.
Click Apply | OK.

Natha

Try getting a new pc

Unknown