Eleventy 49

Title: Inventory wont work properly. (Problem with my computer?) Version: 1_0_3 OS: Windows 7 Java Version: 7.25 Description of Problem: Whenever I try to move something from my inventory to my hotbar, my mouse wont detect the item. I have to hold my mouse over the item and then it gets a bit glitchy. It works normally in regular minecraft, and on my other computer, but not on this one. Error Messages: N/A Error Log: