PowerGallery Conflicts with Lightbox2

I am running a blog with Wordpress and using the Lightbox2 plugin on my posts ( lightbox-2/ ). I want to set up pages within Wordpress to display photo galleries with PowerGallery.

There must be a conflict between the Lightbox2 plugin and PowerGallery because when the plugin is not active, the page with my PowerGallery code works, but when the plugin is activated, the PowerGallery code shows the page of thumbs but when you click on a thumb you do not get the lightbox overlay - it just links to the larger image.
photos/

Is there something that I can change in the PowerGallery code to get rid of this conflict?

in the FireFox error console, i am seeing a lightbox error reported:
Error: Element.setWidth is not a function
Source File: lightbox.js?ver=1.8
Line: 113


the error is occuring on this code:
Element.setWidth('stimuli_outerImageContainer', 250);



this is looking for an element ID of 'stimuli_outerImageContainer' that does not exist on the page.

Fix the issues with the lightbox, and it should fix the gallery problem.