The system starts up displaying the usual DELL logo but does not always show the options for F2 Setup or F12 Boot order. Sometimes these options appear and sometimes not.
I have updated the BIOS fro A04 to A08 but with no change. No particular method of shutting down seems to enable these options when rebooting although a "crash" power off does seem to enable the option more often.
All Dell diagnostics say everything OK
Anyone any ideas?