Until the Corp is dissolved with the California Secretary of State, the $ 800 minimum tax will continue.

The $ 250 notice was likely from the SOS, and is for failure to file the Statement of Officers.

Research "Railite" (sp?) decision to see it that might help.

A quick google found this:

http://newpointlaw.com/walking-away-from-your-california-corporation-or-llc-following-the-ralite-dec...