PLESK not recognizing core component?

[thingwarbler]

So, PLESK has decided to stop recognizing my mail server -- when I try to login it now insists that smartermail is not installed and that I pick mailenable (the only option it seems to think it has). I've reinstalled smartermail, I've run the plesk reconfigurator -- no change.

Any thoughts on how to convince or force PLESK to recognize and accept an installed component?

 

[thingwarbler]

Okay, since no-one else had any brilliant insights...

The solution turned out to involve running the defpackagemng.exe utility in swsoft\plesk\admin\bin with --fix. Whatever was broken in the bowels of PLESK were fixed and it now recognizes the mail server again.