Hi Kam, Tks for your advice. Problem may come from the onboard LAN. Motherboard - ASUS A8N-VM with - built-in PCI graphic card nVidia GeLForce 6100 GPU - onboard LAN. 10/100 Mb MAC with Realtek ALC8201CL I made following tests 1) Removed the PCI-E graphic card (Gigabyte nVidia GeForce 6600, GV-NX66256DP2) and disabled the onboard LAN on BIOS. Connected the LCD monitor to the onboard graphic card. Started FC5_64 with GUI and login as KDE as "root" and then as "user". Both worked great without problem. I tried opening and closing applications without screen hung. Login Gnome as root/user with the same situation, no screen hanging 2) Same configure as point 1) above but installed a NIC, Realtek, on PCI slot. Problem came immediately with screen hanging after working a short while. 3) Tested the box as point 1) configure with the PCI-E graphic card installed. Although the screen hung finally the box worked for a long time only without connection to Internet. 4) Tested Koppix Live CD 4.0.2/DSL/Puppy Linux on this box with onboard LAN on. All of them worked without problem only can't find the right driver for the onboard LAN to setup broadband connection. Now I don't know why FC5_64 happened in this way, completely cut off from outside world. B.R. SL > On 4/17/06, Stephen Liu <satimis@xxxxxxxxx> wrote: > > Hi Kam, > > > > > I did a quick search and found a thread where one user had a > mouse > > > cursor problem. Here was the solution offered: > > > > > > "had a similar problem on a system that uses an nVidia chipset. > The > > > workaround is to disable the hardware cursor in your X > > > configuration." > > > > > > You might give that a try. > > > > Tks. I tried but it can't solve my problem. > > > > B.R. > > SL > > > > When you boot press the "a" key to modify the kernel parameters for > grub. Add a space and a "2" or a "3" to the end of the line and hit > return. If you append a "2" you boot into runlevel 2 which has > networking and X disabled. A "3" boots you into multiuser, > networking, > and no X. Since you say that you have not configured your networking > choose runlevel 2. You will need to use either vi or emacs to edit > the > files.