Data table scrollable

nko

Hi, I've trouble to make my data table scrollable.
I'm using DT 1.7 within pentaho and in mi table definition reported below I'm able to set the language property

[code]
tabDef : {
tableStyle : 'themeroller',
colTypes : ['string','numeric', 'numeric'],
colWidths : ['0,50', '0,25', '0,25'],
colFormats: [null,'%.0f','%.0f'],
queryType : 'mdx',
oLanguage: { "sSearch": 'Cerca:', "sZeroRecords": 'No data' },
paginate: false,

oSettings: {"oScroll": {"sY" : '250px'}},
oScroll: {"sY" : '250px'},

autoWidth: true,
scrollCollapse: true,
scrollY: "250px"
[/code]

In which way I can make my table scrollable? With oSettings: {"oScroll": {"sY" : '250px'}}, or oScroll: {"sY" : '250px'}. What I'm wrong?
Thanks guys