Different info window

Is there a different info window that can be used with regular markers?
(I looked at the PdMarker, but it doesn't help me, as I'm using the
.NET Gmap control...) The info windows are giving me all sorts of
trouble, starting with not opening and closing right, and moving the
map about when I really need it to keep still. Is there something
div-based, or an alternative info window, or do I have to make it
myself?