Hi, Kathy.... Thanks for the help. I did just Cleancaf run on the machine and then took the screen off and cleaned it. And.... no such luck :(
Also, another issue I've had for a while is that the espresso basically sprays out a bit when I use my bottomless portafilter. This may be mostly a cosmetic problem as far as the drink is concerned, but I still think it's a problem that needs to be addressed.
FYI, grind is typically a #4 on an MDR.
Thanks in advance for any further help.