Dead pixel fixable?

Today I disassembled and moved my MVS 4-slot to my new apartment and when I reinstalled the monitor and fired it up it has a single dead black pixel in it that I'm pretty sure wasn't there before. I can't see getting a whole new wells-gardner just for one damn pixel, but it's hard for the perfectionist in me to ignore.

Has anyone see this before? Anything to be done? No chance that the problem is in the MVS hardware right? Thanks for thoughts!

Dead pixel on a CRT? My guess is a spec of dirt that needs to be scraped/scrubbed off.

I have got the same problem. Although i have had it the whole time i have had this one cab. I presume that it is something stuck in the shadow mask. Is there any way to "flush" the tube?

Yes, exactly my thought -- but it's defintely not dirt on any of the exterior glass. When I crank the brightness it just stays blacker than black. Hmm, dust in the shadow mask is a good possibility though; I did notice that if I focus on the dot when I shut off the power it doesn't move as the rest of the image shrinks for that moment on its way out. That gives me hope!