Breadcrumbs are missing after installing JoomSEF.
I'm using Joomla 1.5.10 and JoomSEF 3.3

How do I bring my breadcrumbs back?
Whatever is causing this issue is also causing my left menu and image header modules to not show on certain menus/pages.

My settings are as follows:
The breadcrumbs module is enabled and assigned to all the appropriate menus.

JoomSEF basic configuration:
Disable creation of new SEF URLs? No
Use Title Alias? Title Alias
All lowercase? Yes
Show Section? No
Show Category? No
Use index for sections and categories? Yes

JoomSEF advanced configuration:
Exclude source info (Itemid) Yes
Reappend source (Itemid) No
Ignore multiple sources (Itemids) Yes
Append non-SEF variables to URL Yes
Be tolerant to trailing slash? Yes
Redirect nonSEF URLs to SEF? No
Use Moved Permanently redirection table? Yes
Ask before saving URL to Moved Permanently table? Yes
Do not remove SID from SEF URL? No
Set server QUERY_STRING? No
Parse Joomla SEO links? Yes
Filter variable values? Yes
Filter these words:
Variables to exclude from filtering:
Prevent nonSEF variables from overwriting the parsed ones: Yes

nm...I found it.
I changed
Exclude source info (Itemid) from Yes to No
I haven't tested thoroughly but it appears to have fixed the problem.