I have DW CS 4 and use a mac OS 10.4.11.
Why does my DW lock up ALL THE TIME? For example, if I have multiple DW docs open (tabs at the top), I cannot get to them because my open doc window has positioned itself UNDER the DW toolbar. The only way to "fix" this is to randomly click on different views (developer, coder, classic, etc). That will "unlock" the document and allow me to click on the tab for the other DW doc I want to work on. I attached a screen shot.