count me in, i just attempted to start arma 3 this evening. i got past the bohemia screen, then a big ARMA III screen comes up and thats where it stops. exact same CPU and RAM usage at yours, cept mine peaked at around 420mb once. ive rebooted and was about to reinstall, but ill hold off til i see what your thread yields.
arma II runs fine, DayZ mod on arma II runs fine, but arma III refusing to get past the ARMA III screen right after the bohemia load screen
computer specs:
AMD phenom II x4 955 (3.5ghz OC)
16gb 10700 g.skill ripjaw memory
120gb OCZ vertex3 ssd
asus m5a88-m motherboard
geforce gtx 560 Ti 2gb (no OC)