The Cutleader would crash when save file in Win7, it is caused by Win7 security policy, the following are the methods to avoid it.

Method 1: turn off the UAC control.
Methos 2: run the CutLeader as the administrator, we prepared a document about the steps, you can download and check it:

www.cutleader.com/support/Run%20CutLeader%20under%20Win7%20.doc

There are some videos in website, you can learn cutleader from them.
http://www.cutleader.com/support/BasicFunctions/, please install the tscc decoder if you couldn't play the videos.

the following are the catalog of the videos:
1. system Settings.avi
2. Create Part.avi
3. Import Part.avi
4. Edit Part Feature.avi
5. Create Sheet.avi
6. Sequence And NC.avi
7. Common Cutting.avi
8. Expert Settings.avi
9. Auto Nesting.avi
10. Remnant Nesting.avi
11. Material management.avi