Dear Maintainer, When I enter "dynazoom" page for zooming munin graph (/munin/static/dynazoom.html) and click on graph to start selecting range to zoom to, semi-transparent gray rectange indicating zoom range is off by few pixels from initial mouse cursor position. The outcome of this is that zoomed-in graph is of different time range than gray rectangle was showing while selecting. Looks like zoomed-in graph has "real" range I intended to have, i.e. it took mouse cursor from/to positions correctly, only that gray selector is rendered incorrectly, with offset. This happens using Firefox 33, from both Debian 7 and Ubuntu 14.04 desktops (amd64).