When you click on link; it should open new window onscreen (not minimize mode). It is working correctly in XP IE 7 but not in Vista IE 7. In Vista IE 7, sometime it is opening new window onscreen and sometime in minimize mode. I am using below line of code.

<a onmousedown="window.open('//help.do','Help','scrollbars=yes,resizable=yes,width=800,height=700')" href="#">Help</a>