Just bringing this to the top since I spent four hours last night getting OFP to stop freezing for .5 seconds every 3 seconds. I tried the newest (and even older) drivers for everything, about a million different resolutions and settings, tried disabling my sound card, reinstalled 5 times (the problem didn't occur until I applied the 1.20 patch), well, I basically tried everything (I knew it wasn't my system because it ran great for 3 seconds before freezing for a bit and then great for exactly the same time, but there was no harddisk activity, so I knew it wasn't because it ran out of memory) until I went way back in the forum and found this:
</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">We had seen this problem caused by some joysticks detected but actually not connected.<span id='postcolor'>
Thank you, thank you, thank you, it runs perfect now at 30 FPS on my Pentium II, 400 MHz.
Operation Flashpoint is the best single-player game ever and I'm thrilled I can play it again.
Thank you,
SpaceRain.