'Currently working cannot close'

Hi Guys, I frequently encounter this problem. It works for Some time and then when I try to close this report or form or any table. Report Name> currently working cannot close. Anybody have a clue of why this happens.

Hi, You get this message when you open the lookup/drilldown from without closing the preview of running reports. To ovecome this problem minimize the open screen and select the preview(report) to close the report.

Hi Rajesh, The problem diables any menus and Options. All the menu will be Greyed out. Not only on Reports, I also get when the users are looking at simple forms like Item Card, customer card etc.