Excel vba

Without more info it's really impossible to figure out what the issue is. It could be everything from permissions on the computer itself to folder permissions to other software loaded, etc. And that isn't even getting into VBA itself.

ok here goes I have this code to open a workbook
newfn = Application.GetOpenFilename(FileFilter:="Excel Files (*.xls*),*.xls*", Title:="Please select a file")
The user when he clicks on a button in his open sheet (Invoice)
When he clicks on it it opens the directory where all the quotations are and he clicks on the one he wants the invoice to be filled automaticly .
this works great so far but this code stops giving error ...OPEN OBJECT WORKBOOK HAS FAILED ERROR 1004
the code line shows Workbooks.Open Filename:=newfn

All permissions are there nothing hidden (files)
And what is really weird this thing works on all other computers except one.

How wacky. I'm out of my depth so I really can't help much. But I am thinking it's the computer and not the code.