A-key is a keyboard shortcut to Agree with the safety warning. I just hit the A on my keyboard to close the pop up. Alternativelly, you could create a script to automate the sending of
the A-key each time the warning window appears on the screen.
Larry, you could use AutoIt ( autoitscript.com ), or AutoHotKey ( autohotkey.com ), or some other free software to write a script to automate various tasks. It takes a little bit of learning at first, but one doesn't need to be a programmer to use these tools. It can be fun, and you can automate many other functions of Streets & Trips.
The free add on of S&T Keys (Hotkeys for Streets & Trips) has been created in AutoIt. Check it out, S&T Keys may already have plenty of features you may use (it doesn't automate the "A" though.): http://www.laptopgpsworld.com/keys