My PC died before Xmas and I have purchased a new machine. Its a high end gaming PC that should handle anything thrown at it, paticularly simulations.I used to run FS2004 and had PMDG and Just Flight adds ons and all worked find.I purchased a new FS2004, loaded it onto this PC and it simply doesn't run. When I try and run it I get a version compatibility message for FSUIPC. Build should be 9.00.30612 whatever that means ???I purchased FSX, loaded it and I am so disapppointed with the quality. When I try and install Captain SIM 757, it partly loads and when I run it, the screen refresh is slow and patchy. Anything else OI try and install such as PMDG 737 or B1900 just doesn't load.I was hoping for a real top performing high end simulator, what I have is a retrograde step from my old system. Can anyone advise. For info my PC build is:Core i7 920 processorAsus P6T DDR3 boardDual ATI radeon HD 5770 Direct X 11 graphics cards12GB DDR3 RAMWhat am I doing wrong? Help appreciated. I am pulling my hair out.Many thanks

Your system can run FSX very good. Have you installed SP1 and SP2 or the acceleration pack?Have you set the Nvidia Card to "Performance"?Have you set the FSX settings to reasonable values, i.e. not all sliders to the right?Do you have a good CPU cooler so that you could over clock the i7 920 chip to 3.8 - 4 GHz?

Unfortunately a stock i7 920 isn't the best thing for FSX performance. You'll want to overclock it using a good cooler such as:http://www.crazypc.com/products/ultra-120-1366-50985.htmlORhttp://www.noctua.at/main.php?show=product...d=31&lng=enHelp with FSX tweaking etc can be found here:http://www.simforums.com/forums/forum_posts.asp?TID=29041

Your system can run FSX very good. Have you installed SP1 and SP2 or the acceleration pack?Have you set the Nvidia Card to "Performance"?Have you set the FSX settings to reasonable values, i.e. not all sliders to the right?Do you have a good CPU cooler so that you could over clock the i7 920 chip to 3.8 - 4 GHz?

Thanks for your support/help. I'm not a PC nut so have no idea what overclocking is or what it takes to do it. My PC is brand new so don't know is SP1 or SP2 is appropriate. Accleration pack, I have no idea what this is??FSX values are set mid range, but I thought my machine would be able to cope with such capability.The CPU cooloer is a Coolermaster V8 Extreme which again I thought was pretty good. I am so frustrated you wouldn't believe it. Thanks for any help.

Unfortunately a stock i7 920 isn't the best thing for FSX performance. You'll want to overclock it using a good cooler such as:http://www.crazypc.com/products/ultra-120-1366-50985.htmlORhttp://www.noctua.at/main.php?show=product...d=31&lng=enHelp with FSX tweaking etc can be found here:http://www.simforums.com/forums/forum_posts.asp?TID=29041

Many thanks for advise. Would FS2004 be a better option for me. If I can overcome the FSUIPC issue which I have no idea what it is, but its stopping me loading the simulator, I may make some progress. My PC CPU cooler is a Collermaster V8 Extreme so not sure how it compares with the ones you have identified. This is all driving me crazy. My 5 year old machine that died handled all this and more. I'm now thinking what a complete waste of money. Thanks again.

I posted a response to this on the other thread LOLhttp://forums1.avsim.net/index.php?showtopic=270829One other thing you could do it just download the latest version of FSUIPC but dont register it.