I'm getting the error "/var/run/gdm.pid" already running, but seems to have been murdered mysteriously" error in RH Linux 6.0. The screen flickers over and over again, then I get that error and the whole thing repeats every 5 minutes. I can't get into Xwindows. The last time this happened, I simply logged in as root from the shell and deleted the gdm.pid file and rebooted. Everything worked fine. Well, I had to shutdown last week and when I started the computer, it happened again. I tried to delete gdm.pid, but I still get the error at bootup. I ftp'd from my other machine and deleted gdm.pid from there (have root priveledges with ftp) and the file appeared to be deleted. However, upon rebooting, the same error came back. Any ideas??