goona try removing the file. And abou the bartender stand, when you ALT + RMB items OF YOUR INVENTORY they move to the bartender stand, but when you ALT+RMB items of the stand they DON'T MOVE to your inventory, that was the problem i was poinitng out before.
I also noticed that when you SHIFT+WHEEL while hovering mouse over container's inventory not always the items of my inventory swap to the container's and vice versa. I have to SHIFT+ALT+WHEEL or ALT+CTRL+WHEEL to do so. What i do see is that SHIFT+WHEEL always works when i want to put/remove construction materials from a sign, and after doing it, the SHIFT+WHEEL works normally on container's inventory.