Hi,
It's hard to believe that an animated coffee cup could be given life from the BIOS, but I suppose it's possible. I would think that any "animation" under such circumstances would depend upon graphics card / monitor synchronization characteristics. And that kind of sounds like what Elatano1 is describing. If I understand correctly, they are seeing this apparition move slowly across the screen. (Left to right? Same position vertically every time, or different vertical position? Same rate all the time?) At any rate, removing the hard drive from the picture and booting off a KNOWN clean DOS diskette (or a bootable CD) is likely to be a good aid in diagnosis.
BUT... although a continued appearance by the coffee cup under such circumstances would preclude the hard drive being involved, it doesn't necessarily limit the culpability to the BIOS. I know for a fact that I could CAUSE a coffee cup to appear on a monitor that wasn't even hooked up to a computer. I had been operating under a misconception before. When Eltano1 was writing about trying to use the cursor to affect the coffee cup I mistakenly thought that the coffee cup was disappearing under "it" -- it being the cursor. What Eltano1 was really saying, and what I didn't understand, was that the cursor was disappearing "under" the coffee cup. Right? My mistaken assumption was leading me to think that the coffee cup's behavior was affected by the cursor.
Bartman39 said this was probably RFI early on. I agreed, but with reservations because of my misunderstanding of the results of the "cursor test". If the cursor could affect the coffee cup, that would (I think) almost certainly preclude this being BIOS related OR RFI.
Unless disconnecting the hard drive causes the image to go away, I think RFI is still in the running. Eltano1 has said that there are no known emitters nearby, but it doesn't take much to produce a visible response on a monitor. Amplification can do wonders for a little bit of signal. It sounds almost like a screensaver on someone's "noisy" system could be transmitting this signal. (Deliberate hoax transmission by third party is still possible, too.) It's also possible that a shielding or power supply problem on this system has made it vulnerable to an external signal. I wonder if more information about the environment of this system would be helpful. Is it in a house, dorm, heavily populated neighborhood, lab? RFI can be transmitted through power lines as well as through space. Have the video card and monitor been swapped out? Is there a TV tuner card (or a graphics card with input for TV signal) installed on the system? (Did I ask that before? Sorry, I don't know the model numbers that have been discussed. I'm a recent arrival from the RISCstation universe, and I've never been into hardware anyway.)
Oh boy, oh boy. This is so much fun!
Regards,
Jim