Hi, I upgraded kernel to 2.6.8-1.521 recently, and system has been locking hard when I leave my X session and return to GDM. I use a custom-compiled kernel, where I only turn off unneeded stuff such as firewire, RAID support etc. and enable NTFS filesystem, but problem happens with "stock" kernel as well. I just rebooted to the previous kernel (2.6.7-1.494.2.2custom) and things seem to have gone back to normal. Problems happened both with latest NVidia driver (1.0-6111) and the one before that (1.0-6106). Anyone else experiencing this? Best, Andre -- Andre Oliveira da Costa