The guy asks me follow him into the cistern then either stops in the tunnel just through the door or attacks me for trespassing - as do the other thieves guild guys if I run through into the cistern's main area.

I restarted a game as in my earlier game I'd killed a master thief dude near Helgen - 'thought that had caused the problem.

'Didn't kill that guy in this new game, but still the thieves guild bug is there.

Any fixes? I don't want to miss the other guildies quests though, which happens if I console force the next thieves guild quest to start.

Cheers fellahs!