If I run this script from Eudora’s Scripts menu (remember them??), it 
reliably copies the selected text ( «class eStx» ) or else selects 
all and reliably copies that ...


         set _selectall to («class eStx» is "")
         tell application "System Events"
           if _selectall then keystroke "a" using {command down}
           keystroke "c" using {command down}
         end tell

... that is to say that if I paste after running the script, I get 
what I expect.  But if I add anything to perform any operation on the 
clipboard within the script, the clipboard does not contain the text 
just copied but whatever was previously there.

Is there any simple way round this?

JD