Hi,
Was trying to get vdpau working, and then I noticed MythWelcome wasn't working so tried to fix that. After turning it off and MythWelcome not appearing to do anything, I powered back on and instead of getting back into myth, I arrived at the initial myth setup page, where I was asked my local host name: localhost, and then after clicking next I was told I could not connect to the db.
I tried to run optimize_mythdb.py (which appears to have replaces optimize_db.sh) and it errored, I manually corrected a number of *.MYI files, though one file (recordedseek.MYI) was objecting to be fixed.
I tried optimize_mythdb.pl again and got this error.