We have several Dell GX 520's with bios revision 11a that when booted to a
zenworks cd boot disk (ZEN 7 sp1 HP3), the keyboard and mouse both quit
working. You can enter setup prior to boot, keyboard and mouse work fine.
both work in windows. Both KB and mouse are USB, so somehow the usb
ports are not recognized at boot. Can't hit escape to watch the automatic
load and see an error because keyboard won't work. Have some 520's with
an older bios revision that work fine. Any suggestions????