PokerTracker

Results - Filter on today or yesterday
By Date - agrees with overview and how I think I did
By Session - Shows 329 hands total instead of 422 and the MyCwon is different

Also if I set a date filter and compare with PT3 I get significantly different results
Maybe the PT3 - PT4 differences have to do with day start. On PT3 I have this set to 6AM. I cant find the equivalent setting in PT4.

EDIT:
No actually it seems there are about 1500 hands that did not import from PT3 database.
Shall I re-import the HH ?

After importing all the HH again. Plus some investigation.
All the inconsistencies can be explained by having the day start at midnight.
Can I set a different start of day in PT4 ?

To change the My Day Starts At setting in PT4 click Configure -> Reporting Options and that value is listed first there.