I had three partitions in my system. I formatted my second HD into two, which gave me a total of four partiotions and I plugged in an external HD via the USB port. The next time I tried to boot up, my system would not boot up unless I'd go to the BIOS and disable the secondary IDE, which handles my CD burner and a regular CD ROM. I also added a few programs but I don't think that would matter. Did I add too many partitions? Does anybody know a common cause for this?