\O yup, I'm having the same issue now. Previously 40ish fps using 1.5.8.2, then fps dropped around 75% on FL1 server. Ping was fine, around 30ms. Switched server, same deal. I used PlayClaw3 to monitor fps, and it reported constant 99% GPU use- way above my normal for ARMA 2, which is usually fluctuates between 40 -90%.