You might have used workarounds to solve problems with Netscape rendering in releases prior to PowerBuilder 7.0.2 C3. Some of these workarounds might not work correctly in later releases because of improvements to Netscape rendering.
Specifically, if you used computed fields or text fields containing only spaces, the Web DataWindow generator now creates a table entry for these fields, making the table display twice as wide. If you see this behavior, delete these placeholder fields and use a more standard layout.