hey, i was wondering, what file controls the AI traffic?

If you read my thread here, you know my problem.

I'm going to get the AI file from a different computer and copy that one on to the computer that is having problems with FS.

Will, that work? And which file do i need?

FS9's default traffic filename is traffic030528.bgl
"7. The AI Traffic File
The Traffic Database file contains all the AI flight information for Flight Simulator. The stock traffic file is named "traffic.bgl" for FS2002, and "traffic030528.bgl" for FS2004 (the numbers are merely the creation date of the file). FS2002 will only work properly with one traffic file, but FS2004 will allow any number of them. A traffic file can actually have any name as long as it ends with .bgl, but for consistency TTools will always begin the traffic file name with the word "traffic". You can extend that name with any suffix you want, for example "traffic_KORD.bgl" or "trafficAALEastUS.bgl".

Reference  cited: Ttools202 Readme

"And which file do i need?"

Roger that, then . . . "The stock traffic file is named "traffic.bgl" for FS2002," this part applies from Lee Swordy's TTools' Readme (qouted in previous post).