Hi Pat, in this case you only need the 1.8.0.25 patch. The 1.11.7.9 patch you installed is not suitable and will require a higher video card performance. You will have to completely uninstall and reinstall your AFPD and apply patch 1.8.0.25 The uninstall/install instructions, and patch can be found here http://www.aerofly.com/www/downloads.html

To save your time in setup, you could backup the "config" folder in the AFPD directory. After you have installed AFPD, just copy back this folder into the AFPD directory