used data in the following articles to create the tables necessary to stop WP from throwing DB setup errors.
so far no error_log msgs...
http://codex.wordpress.org/index.php?title=Version_2.3:New_Taxonomy
and SQL at end of the following thread..
https://wordpress.org/support/topic/wp_commentmeta-table-a39xxxx2_blogwp_commentmeta-doesnt-exist
EDIT: also i used info here [after creating the missing tables] to execute a "repair" (whereby the diagnostic stated there were no DB problems at that point), though i did create the tables manually using phpMyAdmin, simply copying the code from the aforementioned wordpress.org articles...
http://www.maketecheasier.com/fix-corrupted-wordpress-database-2/