Sock Ninja
Comments
It be true! Dragging something around with the scroll wheel clicked in creative makes lots of 64 stacks, but in survival the game corrects itself, causing temporary 64 stacks to appear.
No pics no clicks
And, it's a school computer running XP. So that's most likely the hardware instead of the software. most of the bugs you sent aren't actually bugs.
In 1.8.1pre3 dragging blocks while middle clicking will make 3 stacks, then the block on the cursor will say -189 or something. Tested with 3 pumpkins.