I’ve been having this issue on my WordPress multisite network when I turn on the Count per Day plugin on my sites: I am unable to move the widgets right after the Count per Day widget to the sidebar in the administration area.
The problem
If you try to grab the widget to drag it to the sidebar, it will not move and you end up selecting text instead. This issue only seems to affect Internet Explorer. Firefox and Chrome apparently do not have this problem.
What it is not
At fisrt, I though it was just a simple incompatibility issue with Internet Explorer 9. I found that it is not. The cause of this is an unclosed tag.
Solution
Simply open your count-per-day plugin directory and find the file named counter.php. Search for the line 1237. You will find something like this:
Did you notice? The label tag it is not closed. Just close it and you are ready to go.
Now everything is working as expected in IE9.
Count per Day is a great plugin. Thanks to the developers for this awesome work.
Hope it helps you.