The special character handling for sendkeys now seems to be completely broken with 4.52 beta 2. This code:

Code:
run "c:\windows\notepad.exe"
sleep 1
setfocus ("Untitled - Notepad") 
sendkeys ("F1 {F1}; ")
sendkeys ("F2 {F2}; ")
sendkeys ("F3 {F3}; ")
sendkeys ("F4 {F4}; ")
sendkeys ("F5 {F5}; ")
sendkeys ("F6 {F6}; ")
sendkeys ("F7 {F7}; ")
sendkeys ("F8 {F8}; ")
sendkeys ("F9 {F9}; ")
sendkeys ("F10 {F10}; ")
sendkeys ("F11 {F11}; ")
sendkeys ("F12 {F12}; ")
sendkeys ("enter {enter}")


Yeilds this result in notepad:

F1 F; F2 F; F3 F; F4 F; F5 F; F6 F; F7 F; F8 F; F9 F; F10 F; F11 F; F12 F; enter e