To circumvent the bootability problem (if one has a 4.0 CD that had Tiger on it) there are two solutions. 1. Alsoft offers a new 4.3 DVD with new OS for $29. 2. One can copy DW from the updated 4.3 disk to Utilities folder on a bootable external drive and run it from there to check the HD.


Alex
3.1 GHz 13" MacBook Pro 2015, 8 GB RAM, OS 10.11.2, Office 2011, TimeWarner Cable
2.8 GHz Xeon Mac Pro 2010, 16 GB RAM, OS 10.11.2, Office 2011, LAN