Trouble With Some Maps

[LOGICLINE]

hi , we have 6 players all live near each other and we all join together 3 times a week to play coop maps , i have helped them all load the game and set up so we all play together. i have downloaded lots of coop maps and we have had no problems until now however . one of my friends has the game and we have played with him on many occasions ,
but on some of the maps he has a screen problem oon the top half of the screen , the original maps are fine and also many others are but for instance maps AMP BRIDGE , HIDDEN CANYONS , HIT AND RUN , OPERATION SNAGGLE TOOTH , TSK WAYPOINT CHARLIE FINAL , LAREDA are maps that he cant play the top half of the screen keeps redrawing and leaves the old redraws there its almost impossible for him too see anything , yet all the original maps and others including maps like AMP RIVER PATROL , DED , KHZ KIT KAT RIDE , ADVANCE TO INLAND BRAD G THE FINAL ASSULT , JUNGLE WARFARE , OPERATION DEVILS DEN , are game that play fine no screen problems at all . his computer is a compaq prersario desktop pentium 4 3.00 ghz 512 ram physical address extension ? . nvidia geoforce 6200 turbocashe with the very latest driver 7.7.7.7 .. please help
thanks
steve