The display error workarounds involve using the select arrow tool to either click on the background or select all with a rectangle select covering everything. Note that .svg files printed from here will always be correct even if display omits some bonds and atoms. Knowing this, I find this very usable.
Unfortunately, this version is unusable! Bonds become invisible. Follow the link and download 0.14.9... if you dare: you must compile it from scratch. When I have had a working copy of this software, it was hands down the best, hopefully it will be great again.
très facile à utiliser, je le trouve un peu moins puissant que bkchem
Intuative structure editor with a good range of features.