In Libronix and Logos Library 2, the NASB 1977 included some tags for information about the Greek and Hebrew. It was not as complete as the tagging on the NASB 1995, but it was enough to allow look up of many Greek/Hebrew reference books from the NASB77 as well as to use the "Navigate to Associated Word" feature in the New Testament.
The NASB 1977 that came over the Logos 4 does not have any Greek or Hebrew tags. As a result, the sympathetic highlighting and Greek visual filters do not work. I am disappointed that in Logos 4 I lost access to some of the information that I could access from older versions of Logos.
Does the NASB 1977 that is available for separate purchase have any morphological parsing or other information about the Greek and Hebrew words:
http://www.logos.com/product/7431/the-new-american-standard-bible-1977-edition
I understand that Logos and Lockman do not want to update this older Bible version. But I want to make sure I know if this is anything other than the plain NASB English text.