Rak,
First understand that I am a clueless newbie who is just barely starting to learn about this stuff. that being said I'll tell you what has worked for me in Crysis. When i first installed it I just left clicked the icon in the games menu. I set my my video display to very high enabled anti aliasing and did not do video sync. I played for a couple, three hours and the screen started going crazy (vertical lines looking like static, i forget the technical term but there is one lol.) I shut got out of the game. I don't remember if I rebooted or not. There is a similar thread to this one here and i read it and the rightclick DX10 stuff and all that other junk. Next time I tried to play i right clicked and selected DX10. The game load in the upper left of my screen and wouldn't let me select anything beyond the first tier of selections, and to do even that i had to have my mouse pointer two boxes below the box I was trying to select before it would light up. I couldn't even quit without ending the program in task manager. I tried that a few times, no love. So next I clicked on saves. It opened up with the "open with" screen. Secur64 something or the other came up with that and I accidentally hit yes and the game started again. That worked....... for a while then it started locking up dragging ect...... same ole stuff. (oh, somewhere in there I selected optimal settings for the video as well). I
I then went to the DX10 website, downloaded the latest DX10 and updates and installed them. Back to the DX10 right clickie thing, the saved agme open with thing, then the DX9 thing, the left clickie thing on and on. No love. I decided that i had started in DX9 by default so trying to run in dx10 hosed everything up. (that was a wild assed guess, not a decision based on facts or knowledge.) So I uninstalled Symantek and Crysis and re installed Crysis and the patches. I rebooted after the install and after installing every update. I doubt it made a differrence, but it made me feel like I was doing something lol. I disabled anti aliasing and enabled Vsynch. I used the optimal settings. I started the game this time using rightclick/dx10. It worked....... for a while. I got to about the same point in the game and it crashed. Progress this time however. Instead of locking the computer up, I was able to Ctrl Alt Del my way to task manager and end the now not responding program. (I'm still waiting for windows to get back to me for the solution like the dialog box said lol). Turns out one of my automatic updates had tried to kick off while i had the game on pause causing all hell to break loose. Good, still some progress I'm thinking, turn of the event scheduler......
Hex had already told me to hold off on installing the second update, but I had already intalled both it and the third so I was (am) experimenting with it in. I went to MSconfig and turned off all the nVidia services except for the drivers and media library. I don't know what the Media Library is so I left it on, maybe Hex will read this and tell us. I turned off the event scheduler both in the user and the system section. I turned a few other things off as well. Rebooted. Tried to start in DX10 mode. Left corner thing. Tried to start a saved game using right click open thing. No good. Started regular. No problem. Learned how to check my FPS rate in game. When I opened that up it also displayed that I was playing in the DX10 64 bit version, so that question was answered as well. I played after that for about 6 hours with only a couple minor glitches. Each time I was able CTRL ALT DEL my way out. Each time I left clicked the saved game I wanted and was mostly able to play. One time I did it and the saved game immediately froze. When I loaded the game right before it everything was fine.
I don't think I am "fixed", but I am operational at least. One thing i did notice however. I have a G15 keyboard that has an LED, each time it froze, or before it froze, I would see my CPU and RAM displayed on the keyboard LED, The CPU usage was always over 50% and the RAM usage was over 60%. Considering i have 8G of RAM as well as 2 G of ram onboard with the vid cards, that is a lot of RAM and tells me something is going on that shouldn't be. LOL I just don't have the knowledge to even begin to guess what though.
I hope you can find something out of all that to try. My system is a new build so I don't have anything valuable on it. If anything goes really haywire I can always format disk and start all over again. LOL Maybe that gives me a tendency to be more agressive in trying things than I should be, but it is also allowing me to learn faster I think.
BTW if anyone made it this far into this LONG post: I found out how to show my FPS ingame: ~ r_displayinfo=1 How do I turn it off though?