Use system default cursors!
It is absolutely unacceptable that the Acrobat Reader changes the system cursor, and doesn't allow for some method of disabling this!
It shows that Adobe have ZERO respect for their customers.
I have a vision impairment. I have changed my Windows cursor to a very visible, fat, red cursor, because otherwise I lose track of where it is. But Adobe's opinion on that is "********!!!!" apparently.
Why do you hate your customers, Adobe?