My hard drive crashed and I recently replaced the hard drive to a Maxtor 500 Gb. I installed Windows XP Pro and everything went fine after I installed the SATA drive specific to my Intel Motherboard. Windows XP Pro boots up and brings me to the desk top. My problem is the CD Rom will read certain discs like photos on CD or the drive disc for my ethernet card but when I attemted to install a software program disc the drive would not recognize it and nothing appears. The drive appears but it isnt reading the data contained on the disc It is crucial I install this software since it is the new billing and collection program for my Chiro office. HELP!