glitchy minecraft

[hejster]

I need help i have problems with my tekkit modpacks all the logos are checkerd when i connect i lose conection and the writing is all checkerd and i cant play tekkit any more 

[Munaus]

post the log

logs can be found when clicking the Cog-Wheel button on the top right corner on the launcher window.
If you can't open the launcher the logs can also be found inside %appdata% -> Roaming -> .technic -> logs

Paste the content on pastebin.com or paste.ubuntu.com and give the link.