QTableWidget update items.

[Overflowz]

Hi, I'm having trouble with updating QTableWidgetItems. I don't understand what I'm doing wrong :(
[code]void MainWindow::fillTable(QList<QByteArray> Info)
{
int Row = ui->clientsList->rowCount() - 1; //Starts from 0.

//Check if client row already exists.
for(int i = Row; i >= 0; i--)
{
    if(ui->clientsList->item(i, 0)->text().contains(QString(Info[1])))
    {
        //Update row.
        for(int u = 0; u < Info.count() - 1; u++)
        {
            ui->clientsList->setItem(i, u, new QTableWidgetItem(QString(Info[u + 1])));
        }

        return; //avoid new row insertion.
    }
}

//Insert new row.
Row = ui->clientsList->rowCount() + 1;
ui->clientsList->setRowCount(Row);
for(int i = 0; i < Info.count() - 1; i++)
{
    //Fill rows.
    ui->clientsList->setItem(Row - 1, i, new QTableWidgetItem(QString(Info[i + 1])));
}

}[/code]

Step by step problem.

1. at first insertion = OK, all first cells are filled.
2. updating firstly inserted items = OK, all first cells are updated.
3. at second insertion = OK, all second cells are filled.
4. updating second inserted items = OK, all second cells are updated.
5. updating first inserted items = FAIL, all first cells are updated, but NEXT cell's first table is empty. WHY?