Open an IE window which contains a link, click that link to open the second window. **DRAG** this second window to the size you wish (maximised), then minimise it to the taskbar using the - in the top righthand corner. This will leave you looking at the original window containing the link you clicked, close this original window using the x is the top righthand corner. Now restore the dragged window from the taskbar and close it using the x in the top righthand corner. From now on your windows should open at the size you dragged that window to.