A few days ago, my brother deleted a lot of things he probably shouldnt have to free up some space. Ever since then, every time I try to start up my computer, I get a message saying that theres an invalid system disk, even though theres nothing in the floppy or CD-ROM drive. When i called dell, they said i needed the Dell dimension system CD, or something like that, and I think i lost it. Does anyone know any other way I could fix it? Obviously, since im sending this, I have another computer and it has the same OS, windows 98, so maybe that could help. Thanks.