Fdisk Blues

I formated a drive, installed win98 and during the process of installing win98 the program stopped. I tried several things it didnt work. I did fdisk after everyting else failed, viewed current disk setting, it said I had non-dos partion. I deleted it, created a primary, then restarted, then I view the partion information and it defaulted to non-dos. *Note I deleted the non-dos previously and created a Primary dos. This is blowing my mind.. I need to know why is this happening??