The game keeps on stopping downloading halfway through download, primarily when downloading the minecraft.jar file
Comments
I don't think so. Is mcpatcher the patcher for texturepacks?
Please consult http://www.minecraftforum.net/forum/155-support/ for troubleshooting help.
I have had this problem before when I haven't unpatched my jar file after using mcpatcher. Are you using mcpatcher?