> > >My OS is Win 3.1, DOS 6.2 . Everything has started after I tryed to > > > >The program mscdex.exe is in my AUTOEXEC.BAT file. And the CONFIG.SYS > > > >file is calling the CD driver too. > > > >My CD ROM is a Atapi cdrom and I'm using a driver for Atapi cdrom. > > > >This driver I got from the Internet, because the cdrom's original > > > >driver was not working (The computer stopped during the booting > > > >process). And everything was going fine till some days ago. > > Curious about the people moderating your > messages? Visit our staff web site: > http://nospin.com/pc/staff.html I would like to say thanks for everyone who has helped me. I think I've found the problem. The problem was the CDROM itself. I asked to my vendor to chage it. Now I have a Mitsumi CDROM 32 X and it is working fine untill now. There's is another thing too. I have noted that when I set the shadow cache ON in BIOS, the computer stops during the boot process. But when this option is off, everything is ok. See you Carlos [log in to unmask] PCBUILD's List Owner's: Bob Wright<[log in to unmask]> Drew Dunn<[log in to unmask]>