Hello list members: Based on co-pagedesign.pdf document I'm experimenting with grids. I followed the examples mentioned on page 9-10 (Section 1.5) and used the code below: %begin code \setuplayout[grid=yes] \showgrid \starttext This is a line. This is another line in another paragraph. Third line, new paragraph again. \placeongrid{\framed{This is a framed line placed on grid, default setup.}} Some text. \placeongrid[bottom]{\framed{This is a framed line placed on grid bottom.}} Some text. \placeongrid[top]{\framed{This is a framed line placed on grid top.}} Some text. \placeongrid[both]{\framed{This is a framed line placed on grid both.}} Some text. \stoptext %end code All \placeongrid commands with different options give the same output. See the attached pdf file. What do I do wrong? I have context ConTeXt ver: 2014.01.03 00:40 MKIV current fmt: 2015.4.1 int: english/english I have another question related to grids. When grids are shown in the pdf file (as a result of \showgrid), Adobe Reader 9.5 (linux version) always gives the following error message when opening the file: "An error exists on this page. Acrobat may not display the page correctly. Please contact the person who created the PDF document to correct the problem." Despite of the message the file is shown correctly. Why is this message shown? Thanks, bcsikos