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LiveJournal and does not allow posting comments directly from downloadable clients without loading web page with comment form in the browser (in particular, this minimizes comment spam from automated tools). Since some users find it more convenient to write comments in the client (for the same reason why composing normal journal entries is more convenient in the client than in the browser), the latest releases of the client have two additional Web view tabs with browser windows hosted inside the client. Their behavior is controlled via Options/Web. You can make it open all web links inside the client, to intercept clicks on "Reply to comment" links and to open resulting comment form inside the client or as external IE windows. To post a comment you should open a web page inside the client (for example, friends or recent_comments.bml) and click on the reply link. Then the client switches to HTML or WYSIWYG editing mode and you can write text, add HTML formatting, perform spellchecking etc. After pressing Post comment the client switches back to web mode and comment form is loaded inside the 2nd Web window (to keep the previous page in the 1st one). Then the form is automatically filled so you just need to press Post comment. Semagic can also perform automatic spellchecking directly inside that comment form on the web page without switching to editing mode.
Note that those browser windows are instances of Internet Explorer so you need to login in IE to make your username and password substituted automatically. You can also switch it to use Mozilla ActiveX which is based on the same engine as Firefox (see corresponding link in Options). The described comment technique works with Mozilla ActiveX in the same way as with IE but auto spellchecking (highlighting) is not available.
Please do report if you get any errors or have improvement suggestions.
A reminder about timezone: this option is for people who want to always post entries with the time in certain timezone, for example, GMT, but their local timezone is not GMT. In this case the time in the date toolbar is not considered at all. So there is no need to set that option to your local timezone like some people do and ask why they cannot alter entry time. When timezone is set, you can always edit the entry later and manually specify its time but not on the initial submission.
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