Hi. Does anyone have any ideas on what I may be doing wrong?....per dell sales I replaced the hard drive on my inspiron 1545 and i continued to install the CD's that I received with my laptop, however a message appears that there is no boot device. I don't understand what this means or what I am to do. The windows disc will start and begin installation, but when its time to restart and let windows start normally I get this same message. I have ran a full diagnostic and everything passed....one time it did say there was no media...this is foreign to me but it is vital that I have this up and running. I use this for school and I am out of options. Please please help!!! Thank you, Brigitte