Today, I installed a new motherboard in an HP Pavilion. HP shipped a utility with this part. It is to "tattoo" the BIOS to allow the use of the customer's recovery CD. Before I used it, I booted the system to Windows sans errors. After I wrote to the BIOS with this utility, the system's behavior became erratic. It won't come up on the hard drive and only occasionally on a floppy. When I tried to write to the BIOS again, I got a message that COMMAND.COM is gone or corrupt (sometimes). It gets worse. I get different messages and errors and results at every boot. Does anyone share this dreadful experience with the HP tattoo utility?