Database corrupted

[archprime]

Hi - following restoration of my database (link to thread http://x10hosting.com/forums/free-hosting/130161-database-has-vanished.html?pagenumber=) I was able to create a new user & so relink my website to database - but my website [FONT=&quot]http://www.kingfamily.x10hosting.com/[/FONT] is now reporting errors with missing database tables when it attempts to access certain features:

Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[42S02]: Base table or view not found: 1146 Table 'archprim_King.pgv_tasks' doesn't exist' in /home/archprim/public_html/includes/classes/class_pgv_db.php:830 Stack trace: #0 /home/archprim/public_html/includes/classes/class_pgv_db.php(830): PDOStatement->execute(Array) #1 [internal function]: PGV_DBStatement->__call(Array, Array) #2 /home/archprim/public_html/modules/research_assistant/ra_functions.php(451): PGV_DBStatement->execute('execute', Array) #3 /home/archprim/public_html/modules/research_assistant/research_assistant.php(246): ra_functions->print_user_list(Array) #4 /home/archprim/public_html/module.php(91): research_assistant->main('admin') #5 {main} thrown in /home/archprim/public_html/includes/classes/class_pgv_db.php on line 830

I tried repair database option under PhPMyAdmin, but no improvement - what else can I try?
Is it possible to compare the most recent backup with the current database?

Cheers