I notice that the old problem that a card's size relative to the grid when dragged to the table was dependent on your zoom level has been fixed with the new update. However, it seems the coordinates at which the card is placed are now dependent on the zoom level instead.
Detailed Description of the Problem
When you drag a card from a deck or a hand to the table in a zoom level that is not at 100%, it gets placed in a different location to where you drag it to.
It also appears that at 100%, it appears with the top-left corner of the card set to where you released the mouse, so if you were dragging at the center of the card, it shifts down and to the right upon releasing the mouse.
Steps to Reproduce the Problem
Set zoom level to 40% (for example).
Drag a card from a deck or hand onto the table.
The card will appear up and to the left of where you released the mouse, likely due to a missing (or additional) coordinate translation.
Description of Your Setup (Browser + Version, Operating System, etc.)
Firefox 13.0.1, Windows 7.