Mysql Status Inspection

have a look at my mysql status? My php forum gets quite slow at times and I don't really have a clue about the reason why. The server runs on a 3GHz Pentium 4 with 2Gb. The load is strangely not excessive.

I have already made an effort at optimising queries; a week ago, everything seemed fine. I'm worried though about the value of zero for handler_key_reads. Any ideas?

Here's the mysql status output:

Variable_name Value
Aborted_clients 13089
Aborted_connects 1249
Binlog_cache_disk_use 0
Binlog_cache_use 0
Bytes_received 104
Bytes_sent 72
Com_admin_commands 0
Com_alter_db 0
Com_alter_table 0
Com_analyze 0
Com_backup_table 0
Com_begin 0
Com_change_db 0
Com_change_master 0
Com_check 0
Com_checksum 0
Com_commit 0
Com_create_db 0
Com_create_function 0
Com_create_index 0
Com_create_table 0
Com_dealloc_sql 0
Com_delete 0
Com_delete_multi 0
Com_do 0
Com_drop_db 0
Com_drop_function 0
Com_drop_index 0
Com_drop_table 0
Com_drop_user 0
Com_execute_sql 0
Com_flush 0
Com_grant 0
Com_ha_close 0
Com_ha_open 0
Com_ha_read 0
Com_help 0
Com_insert 0
Com_insert_select 0
Com_kill 0
Com_load 0
Com_load_master_data 0
Com_load_master_table 0
Com_lock_tables 0
Com_optimize 0
Com_preload_keys 0
Com_prepare_sql 0
Com_purge 0
Com_purge_before_date 0
Com_rename_table 0
Com_repair 0
Com_replace 0
Com_replace_select 0
Com_reset 0
Com_restore_table 0
Com_revoke 0
Com_revoke_all 0
Com_rollback 0
Com_savepoint 0
Com_select 0
Com_set_option 0
Com_show_binlog_events 0
Com_show_binlogs 0
Com_show_charsets 0......