If you are trying to resize a ClarisWorks Spreadsheet Frame in a Word Processing document or a ClarisImpact Model in a Report document and you try to go across a page boundary, it will only work if you have already created the next page.
In other words, let's say that you have a one page Word Processing document or a Report document and you want to resize your Frame or Model to the second page. You have to create the second page first, or you just won't get the frame across the boundary.
To create the second page you must create type that extends past the first page. Hitting return a bunch of times works. If you delete what you have typed on the second page, the page will disappear.