Reporting service-SSRS Report unnecessary page break and keep together

In SSRS reporting, sometime there may be unnecessarily page break contains in your report. This is happening because of keep together option is true. For my case report heading was shown on first page and details was shown on next page because of that option. So what I did was try to change the option to false. Even though I tried in VS2008 it is not effected correctly. So I tried to open the report(rdl) file in notepad and changed the keep together option to false and then I can fixed that unnecessary page break problem. Search all keep together tag and set the value to false.