After formatting mu computer my CDROM does not show up in My computer or on desktop. However it is working properly and shows up in the BIOS. There's no "!" or "?" in Device Manager and its there. However in all the fixes that take me to the bit about lower and upper filter values, they do not appear in the line they are supposed to. I run XP. I also tried that applicacion called dvdunhide and nothing happened. Please help!