I recently purchased a refurbished Canon 430ex II flash. It arrived yesterday, I unpacked it today and tried it, realized I didn't quite like it. I checked Canon's return policy and it says they "will accept, for return or exchange, defective or unopened merchandise purchased at the Canon Online Store". Does this essentially mean that I won't be able to return the item even though everything that came with the box is still in the box? (How else are we suppose to try an item out if we can't open the box?) Has anyone returned an opened item before?