The TeXworks program has had a few bug fixes recently, for example to get spell-checking and syntax highlighting to work together properly. For Linux users, compiling from the source is the best way to get a current build. For those of use on Windows, Alain Delmoitte is very kindly providing public builds now and then: he has updated his build to build 291. Alain is also working on a manual (in French and English) for TeXworks, available from the same site.