files not found on global queue upload

this happens on 2 out of 3 times - when I choose a list of files, and press OK, I get "file XXXX not found" - so what I do is I select the list of files in the dialog, copy to clipboard, redo the upload, paste the list of files, and it works (or not and then I do it again)

this happens on all 4 of my machines (runnning win2k sp4) and happend on all versions of smartftp so far in the last 1 -2 years or something

(using 981)