Bookmarks do not display in sidebar

Hi All

I think I am running the latest - and sorry to say it but definitely not 
the greatest - Seamonkey for OS/2: Mozilla/5.0 (OS/2; Warp 4.5; rv:38.0) 
Gecko/20100101 Firefox/38.0 SeaMonkey/2.35

A few minutes ago I clicked a link on a webpage and Seamonkey hung the 
system.

After restarting system and Seamonkey I find my Bookmarks are missing 
from the sidebar. I closed the sidebar and reopened it - still missing. 
I closed the sidebar and Seamoney; restarted Seamonkey and opened the 
sidebar - still missing.

I opened the Bookmarks Manager - no bookmarks.

I should mention that *all* bookmarks are visible and work when simply 
scrolling down the list from the Bookmarks menu item.

So, the bookmarks are not missing they simply no longer appear in the 
Sidebar or Bookmarks Manager windows. How do I rectify this?


Regards

Pete