Several folks have asked about Absolute Check, so I asked Susan Fears for a description and why it's such a great feature to have:

Absolute check is an embroidery feature that 'checks' the position of the design as you touch the image of the design on the screen.  For example, if you are placing a design on a project and you want to know exactly where each part of the design will sew out on the project, you touch the screen with your finger or touch pen and the needle moves to that position.  There is no more check box.  Absolute Check is amazing, it is accurate and it is fast.

So, for example, if I were embroidering a clown on a child's shirt and wanted to make sure that the big red nose exactly covered the dime-size grape juice stain, I'd use Absolute Check to move the needle around the outline of the nose and see if the entire stain were covered. Or, if I were stitching a delicate heirloom design on purchased eyelet, I could easily check to make sure all the stitching landed on fabric rather than over eyelet holes. I can see why everyone loves this feature so much!

btw - Here's a screen capture from the 830 Emulator CD. It's just like playing on the real machine, except all the stitching is virtual. A great way to learn about the machine without actually having one in front of you! Visit your local BERNINA shop for details.