Textbox doesnt lose focus when moving frame

I have a textbox inside a frame, but if i move the frame around with the mouse, the marker in the textbox disappears but if i type something its still inserted into the textbox, so the textbox still have focus, it just doesn't seem that way.

And as far as i have read this bug is a browser related bug. But im hoping to find a workaround.

I have tried to set focus on other components or the window itself but that doesnt take, i have also tried to remove focus with blur(), but that didn't do the trick.

Im using telrik components and rad window, but the problem should also be开发者_StackOverflow occur with iFrames and other input boxes, if what i read is right.

Any answers will be greatly appreciated, thanks.