White screen when connecting to server

[TheSneakyOnion]

Title: White screen when connecting to server

Version: 3.0.3/3.0.4

OS: Windows 7 64-bit

Java Version: Java 7

Description of Problem:

When I try to connect to my friend's Minecraft server, it says "Logging in..." and then the words go away and I can hear a splash of water from I think where I last logged in, then the "Logging in..." words disappear and I am left with the dirt texture background of the Minecraft menus and nothing else, and after a few seconds, Tekkit goes white and freezes.

Error Messages:

Blank white window.

Error Log:

[hugopl00]

you need to call the owner to delete your bat file then yes you will lose all your stuff but he you want to join so try it PS: this will not always work