file locked after system crash

[Torbjorn Hergum]

Hi

After a system crash emacs tells me that the file I try to edit is loced 
by another user (which happens to be myself) on another ip-address, 
which happens because I use dhcp and do not always get the same 
ip-address back after a reboot/crash.

Does anyone know where the lock-files reside, so that I can delete them 
(manually) after a crash?


Thanks

Torbjørn