Installing Nivo Slider 1.2.0 adobe extension manager CS5.5 comes up with: 'This extension can not be installed, it requires Dreamweaver version 7 or greater'. To my knowledge Dreamweaver version 7 relates to the window platform but I'm working on Mac. Any solution available?

Hello Tom.

Please take a look at the following F.A.Q.

When installing an exension I get a message: wrong version of DW - version 7 or higher is required

Thanks...have upgraded and it worked but...I have now the following problem:

Using Dreamweaver CS5.5 Mac OS x 10.7.3.
Clicking Command it crashes and shows up with:

The following JavaScript error(s) occurred. Unable to open script file "Macintosh HD:Application: Adobe Dreamweaver CS5:Configuration:SharedMXzone:NivoSlider:NestedTreeControl:NestedTreeControlClass20.js"(error 2)

Hello Tom.

Please read the following article and try to clear your DW cache file :
Clearing Dreamweaver's cache

Regards: Vulcho.