cant close computer management

hi all
i was just lookin at error reports in computer manegment. changed nothin then closed all the dialog boxes that were open. but wen i try to close the computer management i get a box that says i must close all dialog boxes b4 i can close it. there arent any open.
any help is greatly apreciated, thanks in advance

If you are sure there are not dialog boxes open, are you able to restart and try it again?

hi deaconfrost
thanks 4 replying quickly. thats wot i had to do in the end. i just rebooted n it was ok. i think that happend to me once b4

You could try alt-tab to see if there is a dialog box that went behind another window. Otherwise, rebooting always works .