Open sources/admin/ad_forums.php
[code]
		/*$ibforums->html .= $ibforums->adskin->add_td_row( array( "<b>Target to redirect to?</b><br>Leave blank or use '_self' to load in same browser window" ,
																	  $ibforums->adskin->form_input("redirect_loc", $forum['redirect_loc'])
															 )      );*/
[/code]
Replace With
[code]
		$ibforums->html .= $ibforums->adskin->add_td_row( array( "<b>Target to redirect to?</b><br>Leave blank or use '_self' to load in same browser window" ,
																	  $ibforums->adskin->form_input("redirect_loc", $forum['redirect_loc'])
															 )      );
[/code]
Save & Close
See the 2 png files on for the settings