Has your dialog box gone missing or no longer appearing on screen?
Its a common issue but very easy to fix.
It’s the system variable called FILEDIA which
has changed.
If you do the following:
Type FILEDIA into the command line it should
say the following Enter new value for FILEDIA <0>: change
this to 1 and the dialog boxes should now appear on screen again.
0 Does not display dialog boxes.
The default setting is 1 Displays dialog boxes.