Hi yonas, Tks for your advice. > I have experienced the mouse pointer problem. are you using nVidia > card? Yes I use Gigabyte GV-NX66256DP2 PCI-E card Nvidia 6600 PCIE > if so, I solved it by modifiing the /etc/X11/xorg.conf file. > Under-- Section "Device" > Option "HWCursor" "Off" > > after that mine looks like > > Section "Device" > Identifier "Videocard0" > Driver "nv" > VendorName "Videocard vendor" > BoardName "nVidia Corporation C51 PCI Express Bridge" > Option "HWCursor" "off" > EndSection After editing /dev/X11/xorg.conf Section "Device" Identifier "Videocard0" Driver "nv" VendorName "Videocard vendor" BoardName "nVidia Corporation NV43 [GeForce 6600]" Option "HWCursor" "off" EndSection Problem still occurred. After working a while the mouse pointer hung permanently. [Ctrl]+[Alt]+F4/F2 has no function. I have to hit the [reset] button. Whether I need to amend following line; BoardName "nVidia Corporation NV43 [GeForce 6600]" Is "NV43" the model of my PCI-E card? It was automatically assigned. B.R. SL