nobody's objects on my land

hello everybody, i'll be brief.
i'm a premium account, i own a 512sq land.
opening the "about land" menu, under the "objects" file, i noticed this situation:
simulator primitive usage: 92 out of 117 (25 available)
primitives parcel supports: 117
primitives on parcel: 92
owned by parcel owner: 82
set to group: 0
owned by others: 0
selected / sat upon: 10
well, these 10 prims aren't mine (or so i think), since mine are the house (70), the rug (1), the sofa (10) and a paint (1) = 82
i did clear the cache and relog, several times.
please, help me, i want my 35 prims available... lol
many thanks
KP

of course i'm not sitting on nothing, and i'm not selecting nothing...

I forget which it is but there is an option in about land to show objects owned by others (or it could be owned by you.......that's the part I'm not sure about). Take a look at that and return or delete the ones you don't own.