Items/ Shift Click Glitching Out

So I believe this bug will affect every gamemode and version, but I haven't tried them all. In 1.6.4 and 1.7.2, I can no longer shift click items from a chest into my inventory. Also, I cant shift click items from creative. I have to drag, and its very hard. Sometimes the block just flings itself back into the creative inventory. Also, I can no longer scroll up and down my server list. My scroll button and use item button are both working for everything else, so it's not the buttons. I sent Mojang an email about this, because it makes playing Minecraft seem so much more difficult, and it drives me insane! Is anyone else having this problem? Thanks for reading.