Personal Video Database

I used the duplicate in the tab "movie".
I sort my movies as "ID"' , so he start on the left side with, (in my case).
aliens                    1. aliens ................ (right side above the picture)
titanic                   2. titanic................ (right side above the picture)
road to perdition      3. road to perdition.. (right side above the picture)
etc
etc
because i used the duplicate option,(i think to remove the duplicate movies )
he skipped nr.16 and nr.27
so 10,11,12,13,14,15,17.18.....missing 16
also 24.25.26.28.29...............missing  27

so what can i do about this ( i use 09910 )