I remember I saw someone posted the similar question quite some time ago, but couldn't find that post - after 30 minutes searching, :( If anyone can point me to that post and if there is an answer, that would be great.

Everything seems fine in FF, but in IE 7(not sure IE 6), when I drag the rectangle or rounded rectangle, the shape kind of 'blink', sometimes, the shape becomes invisible, only the text annotation visible. The strange thing is that no problem with other shapes, such as circles, ellipses, triangles or path.

Hope I described the problem correctly. I use Dojo 1.1.1.