Hi!I formatted my HDD-drive and reinstalled my FS9 and now get jerky movements (both sound and aircraft movements, AI-traffic, etc.)I checked my install, checked my soundcard drivers, Videocard drivers, etc, and they all seem OK.AI-planes stop jerkily and kick dust from the intermittent pauses/jerks, the ATC voices stutter sometimes.So, what did I do wrong this time?Anything to do with modules, gauges, bgl's, textures, or what?Grateful for any help.Thanks!Hans HermanssonSWEDEN

Perhaps you need to update your motherboard/chipset drivers.

Hi again!I checked all drivers, which seem OK.You may have thought that I formatted all I have....I have 8 partitions and only formatted my J:drive, where I keep FS9.I tried to install again and get the same problems.Funny; this never happened before and I rack my brains to figure out what could be wrong.This time I installed the Microsoft FS9.1 update directly after installing the basic FS9 (I have tons of addons)Maybe I had better install FS9.1 update after installing my addons?I get the feeling that something is missing, but don't know what....Any further help most welcome.....Hans HermanssonSWEDEN

Did you try re-installing the update to FS9. This was supposed to fix many of the problems. You may have forgot.Ronson2k

Donny AKA ShalomarFly 2 ROCKS!!!It might help to reinstall DirectX 9c, and it won"t hurt.Best Regards, Donny:-wave

Hans,can you confirm that your other applications also seems to load slow and need more times than before. My suggestion is to check whether your harddisk is running in DMA5 mode or not, do this in your system configuration. I would give you exact instructions how to check your harddisk settings but i

Greetings From Florida USA, Hans.I found a post by "CRUACHAN",here on the forum.I too had similar problems.But after reading ,and following his tips,my CP is just as good as it ever was.FS9,now performs real well.Mike gave a great post called"Routine System Maintenance-Window XP" His "guide to performing regular routine system maintenance"is great. Hope he can help you. VIN