The math mode in TeX is defined by $ $, any text inside the dollar is considered as mathematic and interpreted as such (for example to get x square you have to type $x^2$). In pspad, in older versions, only the $ sign was highlighted, and in the current version (both beta and stable) nothing is highlighted, excepted if the formula is inside ($ $). Like if the math mode was defined as ($ text $) rather than the correct form $ text $. I hope this is clear ! JoĂŤl
-- <http://forum.pspad.com/read.php?6,40478,40688> PSPad freeware editor http://www.pspad.com
