Since 1.6/1.6.1, when I right click and left click it will often trigger twice or more times. I have attached a screenshot to be able to visualize the issue.

1. This only started recently with 1.6
2. This does not happen in any other game or program so its not my mouse or hardware.
3. It feels like its a sensitivity issue built into game in that case an option to adjust it would be nice.

One screenshot shows me right clicking once into each of the inventory slots, however many of them dropped two pieces and one even placed three.

In the other screenshot I went to place a straight line over of sand but most times I right clicked ending up placing two.