I like to keep both the pdf viewer and the text editor on screen at the same time. If you don't close the pdf viewer before typesetting it does not update.
Perhaps this could be achieved by adding a configurable quickbuild button that executes a script ie:
save tex file ...
latex ...
latex ...
bibtex ...
latex ...
dvi2pdf ...
refresh pdfviewer.
Appologies if this feature already exists, I haven't been able to find it yet if it does.
Keep up the good work!