Hi, I'm working on bringing OLPC up-to-date with all the great efforts with GNOME 3, systemd, etc. On the OLPC XO laptops we have quite a strange screen - it is small (152mm x 114mm) but very high resolution (1200x900 i.e. 201 dots per inch). Previously, on Fedora 14, we had to adjust the default GNOME font sizes since they didn't look right on the screen (I think they were too big). Now I'm looking at applying the same set of customisations to Fedora 16 since the default fonts are uncomfortably small on our display. However, I've noticed a fundamental difference in the sizing of fonts between Fedora 14 and Fedora 16. This is visible with a simple experiment: 1. Open gedit 2. Change document font size to Sans 72 3. Write the capital letter "I" and measure the height of the printed character with a ruler I do this on two laptops side by side, one running Fedora 14 and the other running Fedora 16. On F14 the height of the I character is 1.9cm, and on Fedora 16 it is 0.9cm. That is quite a difference. On both laptops, xdpyinfo correctly prints the screen resolution, DPI and display size, which have not changed. (approx) 1/72 of an inch, size 72 should produce characters of around 1 inch in size - and 1.9cm (the F14 measurement) is about an inch. Also, Cantarell seems to play by its own rules. On F16, the "I" in Cantarell 72 is 0.8cm, not too different from Sans 72, but the difference between Sans 11 and Cantarell 11 is more significant - at size 11, Cantarell is tiny. Can anyone help me understand this behaviour? Thanks, Daniel