Hi and thanks so much for your purchase today!
There shouldn't be any black boxes. Are you sure you have the latest version of Adobe?
If you think you do, take a look at this blog post info and see if it helps:
The sellers on TPT often get many, many questions regarding the downloads of products. If you are trying to download a product, open it, and you see blurry or black boxes, this is what you need to do.
1.Know that this is not the seller's fault or error. It's an issue on TPT's end at times and an issue on your computer's end at times. It's easy to fix, so please don't leave poor feedback due to this.
2.Go to your My Purchases page.
3.The third paragraph of text will tell you what you need to do to fix this issue. It's usually just a quick download of the newest version of Adobe Reader.
4.If you are on a Mac, DO NOT try to open TPT files in Preview. All TPT files must be opened in Adobe Reader. To choose the program to open with on a Mac, find your downloaded file, hold down the Control key and click on the file, go to Open With..., and choose Adobe Reader.
5.If you are still having problems viewing a file and none of the above worked, go to your My Purchases page and look to the right of the screen to find Download Difficulties in RED. This will direct you to a page where TPT can email you the file or you can Contact TPT for assistance.
6.Finally, if you still cannot download or open/view a file, go to the bottom of any TPT screen and find Contact Us. From there, you can Open a Support Ticket and TPT will help you with anything you might be having trouble with. They usually respond very quickly and are so sweet to work with!
I hope this helps:)
April 16, 2013