ok here is the story. One day my computer starts to run slow. Its windows xp pro, sp1. i restart the computer and it says i have to run check disk. so it takes me to the blue screen and it finishes and boots into windows. then it starts saying that firefox.exe is a corrupt file and i should run checkdisk. so i run it again in windows. it restarts my computer and suddenly i cant boot up. it boots up until it flashes the checkdisk screen and it automatically restarts into a loop. please help. how can i boot up (i have another hard drive without windows, whats the problem?, how do i fix it?