MDND test failures

[haysmark]

In IE6, IE7, Chrome 13, and Safari 5.1 I get the following failure:

../../dojox/mdnd/tests/robot/test_dnd_acceptance.html::test_dnd_acceptance::dropAccepted
assertEqual() failed:
	expected
		1
	but got
		2

 with hint: 
		An item should be drop on third area.

In Safari 5.1 and Chrome 13 I also get:

../../dojox/mdnd/tests/robot/test_dnd_verticalDropMode.html::test_dnd_verticalDropMode::moveClassic
assertEqual() failed:
	expected
		3
	but got
		4

 with hint: 
		An item should be drop on the right area.

[bill]

Dup of #13483