Thanks to all for the suggestions. Somehow I managed to uninstall "Play on
Linux". When I reinstalled it it now shows up in the "Games" menu instead of the
"Wine" menu. I installed the Streets and Trips after that happened. After your
suggestions I went looking for the Streets and Trips shortcut again and I found
it in the "Wine" menu. It does start OK from there. I have found out how to make
a desktop shortcut but can anyone tell me how to move a menu short cut from one
menu to another.

Also I have seen references to opening a terminal window. I take it that is
similar to going to a command prompt in windows. Can someone tell me how to open
the terminal window?