No matter what texture pack it is, if I try to place a block or remove one it disconnects me. I can walk around but just not do anything with crafting or placing anything. If I'm not using a texture pack, I CAN place blocks and remove them etc. Wtf is going on please tell me how to fix it or tell me what is going on.
Are they HD?
If so, did you patch Minecraft using the updated patcher?