In easy radarmode I can't acquire a lock by using the insert key function. I can select the target and mark the target on the radar screen, but no yellow diamond box appears and it's not possible to fire a radar guided missile.
I always have to wait, until the programm automatically locks on the target and the red box appears. After hitting the target I have to wait until the aircraft crashes into the ground to get the next target acquired automatically.
It worked fine without having patch 2 installed. I have made two clean new installs of the game and tried it with several aircrafts. but no way...
I play the german version.
Athlon XP 3000+,
1024 MB RAM, 400 Mhz Infineon,
Sapphire Radeon 9600 XT 256 RAM (Ati Catalyst 3.7),
XP prof. sp 1,
1024 x 768 / 32