I am using Autocad 2007 and I can not add any blocks to tool pallets. I created a blank tool pallet by changing the file location search path. I was able to load 4 different tool pallets with dynamic blocks a couple of days ago. Now nothing will load. The methods I have tried are drag and drop to the pallet, copy the object to the pallet, and I used Design Center to create a new pallet. In Design Center, the pallet tab was created, but no objects were put on the pallet. Any ideas what could cause objects not to load onto a tool pallet.