Am I the only one who gets weird looking buttons from time to time? I've noticed this in Firefox 2.0.0.3 and I have attached a screen dumb where you can see it.
Jack can you elaborate on that? I've remove all my own CSS that could affect the button but in vain. What should I look after and what do you mean by "old buttons sprite"? Sprite shounds like something I would espect from Flash or Director...
The buttons use a composite image and move it around based on the state of the button - aka "css sprite".
In the later css/images, the button has a new state "focused" and the composite image has been updated with new pixel locations for this state. If you have an older cached image, there will be nothing at those image coordinates and you get what you have in your screenshot.
In FF a control+reload should fix the issue, but in IE you may need to do a clear cache.
Jack Slocum
Ext JS Founder
Original author of Ext JS 1, 2 & 3.
Twitter: @jackslocum jack@extjs.com