Hmn... potential database problems

Just looking at the server logs over the past day, as while as the latest attempts to run some of the regular maintenance tasks around here, and I'm seeing some errors on one of the database tables that's involved in running the system.

It seems that it was only the search_index table that was affected, and MySQL's repair table functions seems to have eliminated any visible error messages. I suppose that the search table isn't used too frequently around here, but the repair function did modify the number of rows in the table, and thus I'm worried that the table itself may be somewhat corrupt. Anways, I'm looking for a way to rebuild the table from scratch (it is just an index table after all), and will keep an eye on things to ensure that no other errors crop up.