1704 Ultrasharp LCD

I have exactly the same monitor and video card with exactly the same problem. I reinstalled the video drivers, no change. Dell sent a new video card (ATI x300) which I knew wouldn't solve anything...and it didn't. Now they want to replace the motherboard, which I guess I'll let them do but don't see it working either. Still searching these posts for answers. The only workaround I've found (to get into the BIOS setup) is to switch to analog mode temporarily by pressing the '-' button on the monitor, or attaching the analog cable and removing the digial cable, which seems stupid.

I have the exact same problem. I noticed that when I connect the analog cable and press the minus sign on the monitor the self test box shows "digital'. When i connect the digital cable and press the minus button on the monitor the self test box shows ' analog". Therefore, I think the error message is just a glitch to be ignored. The message is probably telling you that it is displaying a digital signal and cannot display analog as the self test box is showing.   I look for Dell to release a new driver soon if i were a betting man. Good luck.

Dell seems to have finally fixed the problem. You need to reinstall the MONITOR driver. Go to the downloads page, enter your tag number, and select "monitor" as the type. You need to download and run the one for the 1704FPT, r78777.exe. Problem seems to have gone away!