Ext JS: generally frustrated with height and width issues

Does anybody else wrestle with problems related to width and height of panels and containers? Let the browser handle (autowidth) or specify height and width? How best to leave room for a vertical scrollbar? How best to avoid horizontal scrollbars? hbox and vbox cause me no end of trouble. And when everything is perfect in FF, there is always some width bug to handle in IE. I suspect I have written too many resize handlers - I expect the framework to handle this. Are t开发者_Go百科here secrets related to layouts that might help developers?

Can anybody point me to some general guidance related to height/width best practices with Ext JS?

Sencha appears to be addressing some issues in 4.x.

http://www.sencha.com/blog/inside-the-ext-js-4-1-layout-system?mkt_tok=3RkMMJWWfF9wsRokuaTNZKXonjHpfsX56uUvX6a1lMI%2F0ER3fOvrPUfGjI4HTMp0dvycMRAVFZl5nR9dFOOdfQ%3D%3D