Tekkit crash

[cncwarlord]

Launcher/pack Version: 3.0.3

Operating System: Linux Mint 11

Version of Java: 7

Description of Problem: Repeated crashing. The problem occurs whenever i transfer items from the NEI menu to my hotbar in creative mode, in smp. I dont know what could be causing it, but i;ve linked my log. I looked through it and saw what looked to be some possible culperates towards the bottom, but I dont know what they mean. Something about a "bad window"

Error Messages:n/a

Link to pastebin of log: http://pastebin.com/raw.php?i=dxrGGAFc

[cncwarlord]

Shameless bump in the face of obscurity! It now also affects me when NOT in creative mode. Simply moving things from my inventory to my hotbar produces the exact same effect, as well as even simply moving things from my hotbar to my hotbar. I realize this problem is probably only really happening to me, or may have to do with my choice of OS, but please i need my tekkit D:

[turtlemoviesco]

MOD EDIT: Cut that out.