Try removing the files listed below along with those mentioned above to your desktop.
1) /Users/Your User Name/Library/Preferences/com.adobe.dreamweaver-13.0.plist
2) /Users/Your User Name/Library/Preferences/com.adobe.dreamweaver-13.0.plist.lockfile
3) /Users/Your User Name/Library/Caches/com.adobe.dreamweaver-13.0
Restart your computer and Launch DW.
-Harshit yadav