Problem Please Help me with this.....Please..

[wilsonwc]

hi all....i hav a problem with the problem 'quit due to the program damaged'.......but i hav replace the new classes.xfs inside the rakion folder. Then i try to run it again then still the same bos came out...'quit due to program file damaged. then i go take a look at my rakion file and found tat my classes.xfs had gone....zzz.....what should i do...