Changing the "Ignore multiple sources" option seems to have fixed the problem.

Site info:
Joomla 1.5x
VirtueMart 1.1.7
Template: rt_zephyr_j15 1.5.1 by RocketTheme
FrontPage Slide Show v2.6
JoomSEF v3.9 with VirtueMart extension v2.0.39

The FPSlideShow module is set to display only when the Home menu is displayed - so it normally displays only when on the site's home page.

When I activate JoomSEF FPSlideShow continues to work on the home page, but is also displayed on other pages where it does not belong. In addition, on the extra pages the module never loads any pictures, but simply displays the "loading" symbol.

In addition, on pages where FPSlideShow is displayed in error, the Left Menu does not display at all.

When I disable JoomSEF the problem goes away and both FPSlideShow and the Left Menu go back to their normal behavior.

Thanks, dajo. That is very helpful.

Ernie

I have inherited a Joomla/VirtueMart site from a developer. Although I have a pretty good handle on Joomla, I've never worked with VM before. So at this point I'm a bit lost as I try to get SEO working with this site by using JoomSEF & the VirtueMart extension.

The only settings that I've changed are the order of the site title and the divider symbol, and turning on the use of numbers for duplicate URLs. Other info about the site:
Joomla 1.5x
VirtueMart 1.1.7
Template: rt_zephyr_j15 1.5.1 by RocketTheme

Here are the mysteries that I'm trying to figure out:
1. JoomSEF generated almost 3100 URL for this site. This is at least twice the number of items I expected. Many of the URLs are in the format of category/cart, category/account, category/register, and category/.../ask.
I also have URLs in the format of subcategory/category/subcategory/item.

2. Many of the URLs have associated products with the wrong category. For example, JoomSEF created the URL mna-publications/bookstore/mna-publications/gold-sun-face-pendant for an item that should be jewelry/rings-pendants/gold-sun-face-pendant.

So I'm trying to make sense of just what trail JoomSEF is following to build these URLs. I'm guessing that the subcategory/category/subcategory thing is a switch in the JoomSEF configuration that I have not yet found. I've thoroughly read through the documentation, but just don't have a sense of what to look for.

Thanks in advance for your help!