One ok button ,instead of .....buttons,accessing unplugged f drive

After I save as prj in thumb drive.i unplug my thumb drive ,and accidentally access this prj again.then ,if I have 40 pic,I have to click “something like pic_xx not found” 40 times.which is adnoring.i would thus,suggest a list box or text box with a scroll ,which list down “pic_1 not found”,next line ,"pic_ 2 not found’,and so on…the user would need to click one ok button(not 40 ok button).any comments or suggestions,anyone? thanks in advance,tst