Ok after some initial tests - I was able to create at least one paging problem. Really not sure if this helps - but I created about 30 posts - all labeled and numbered creating same day posts, previous day posts and then one on each day going back for about
My combination of a paging 'fuzz' tests that caused the problem was...
Max. Days on Main Page: 15
Max. Entries on Main Page: 15
Entries per Page (when show all entries in categories is false): 5
When set as above - the last 11 posts in the repository were missing.
I've emailed a Zip of my test repository and SiteConfig, set to run on localhost/Dasblog from Trunk