My Dell 4100 is having problems booting up. It will boot fine if it is restarted but when it is booted up cold when the power is off then it is turned on it gives me a message that says “invalid boot disk, please insert a bootable floppy in drive A:” My BIOS is set to look for the system files on my HD first then the floppy. Even when it was floppy first i got that message. Whenever i do get this message i just push the restart button and it restarts fine. I have no idea what it is, ive flashed the BIOS to the latest version and i have no idea where to go from here. Also when this computer does boot it takes a very long time to get past the Dell “splashscreen” that comes up when it is restarted, like almost 45 seconds. Please Help!?!