Have you been getting messages from dolphins in your sleep?
You are obviously channeling that Nasa moon hoax dude who used to post here, Seethruart or whatever his handle was.
Do you see any tiny cities and such?

E-mail/IM it to me and I can post it. jefftroymcclure at sbcglobal dot net or AIM to my SDMB name.
Excellent! Maybe you can shed some light on these mysterious artifacts.
Hrm. How many colors does your monitor run at? That looks a lot like a relatively detailed image knocked down to 256 colors.
Wait a minute, you mean it’s true? The aliens really are coming to get Snooooopy?
Tough break, man. Give us a holler when you get to Alpha Centauri. 
I agree. In fact, I can reproduce it that way, by exporting it as a GIF with Windows only colors.
See? My aluminum foil dreadlocks really work.
Well, it’s finally happened to good, ole Snoooopy. A fine education has finally taken its toll on your vision. Poor kid. You stared at the books for too long, and now it’s too late!
Vision blow-out. Hallucinationitious Extrema…
Snooooopy - Both of them have a point worth checking. Also, are you using an “accelerator”. The ones for MSN and Juno each speed up surfing by cutting the colors in images.
Oh yeah, I see the artifacts in the file that Troy McClure SF posted. Can’t miss 'em! Big orange loopy ovals and circles, they are.
…what?
I think they’re the precursors to electronic versions of crop circles!
Be sure to have a glass of water, a baseball bat, Albuterol, and your faith handy.
Excuse me, I have to fix my radio. There’s some awful static all of a sudden.
I’m using AOL 9.0 so, you know, Satan could be involved somehow.
AOL, eh? That’s probably it. IIRC from when I used AOL (a few releases ago), there’s a setting somewhere to turn image compression on or off. You could turn it off temporarily and then access the SDMB to see if the artifact disappears.
That did it! The artifacts are gone from the banner. My alien masters will be very pleased that I am no longer wasting time on this issue.
Prepare to be assimila … oh, actually, these are the kinds of aliens that enslave, not assimilate. I can be so forgetful sometimes! It’s amazing that the aliens bothered contacting me in the first place.