So go to Settings -> Customization -> Customize. In the new window, Expand Entities, then Opportunities. The look for Views, and in there Associated View. Make the changes you want to the sorting and filtering of the Associated View,
save it, and then Publish.
Refresh your CRM page and the next time you look at associated Opps on an Account, you should see your updated view.
The postings on this site are solely my own and do not represent or constitute Hitachi Solutions' positions, views, strategies or opinions.