PleskMainDBException
My question was very easy to solve...
I'd reinstalled the SQL Server by de-install and reinstall, and then my db was disjoined from the engine. When plesk try to log, there is no database on the sql server. What to do?. Easy!! In my case, I found the MDF and LDF files used by plesk, make an attach (sp_attach_db or simply with the SQL Management studio use left button for attach the database files called psa_xxxxx and sitebuilderxxxx.
Then, When I try to log into the control panel, my systems tells 'there's no user admin', and was true!!. I've must to recreate the user admin into the sql server and then give to this user permissions for using the two databases, then no error was produced.
I'm only have a little question: the control panel web page appears no to be applying the css and not loading the images....

. I don't know why, but it functions correcly. My site is online again, my mail is correctly receiving and all systems go again.
If anybody have any question, and I'm able to ask based on my experience on that 'evil problem', please, let me a post here, and I'll try to ask you asap...
Bye!!
Jordi Mayor Gisbert.
Microsoft Certified Systems Engineer (MCSE on Windows NT, 2000 and 2003 Platforms)
Microsoft Certified Systems Administrator (MCSA on Windows 2000 and 2003)
Microsoft Certified Trainer (MCT)
Dpto. de Técnico e Informática de Radio Alcoy, S.L.
http://www.radioalcoy.com
[email protected]