Install Jdownloader in Ubuntu 10.10/10.04/9.10
Open the terminal and run the following command
sudo add-apt-repository ppa:jd-team/jdownloader
sudo apt-get update
sudo apt-get install jdownloader
sudo add-apt-repository ppa:jd-team/jdownloader
sudo apt-get update
sudo apt-get install jdownloader
sudo apt-get install compiz compizconfig-settings-manager compiz-fusion-plugins-maincompiz-fusion-plugins-extra emerald librsvg2-common
sudo apt-get install fusion-icon
sudo apt-get install v86d
gksu gedit /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset video=uvesafb:mode_option=1280x1024-24,mtrr=3,scroll=ywrap"
#GRUB_GFXMODE=640x480
GRUB_GFXMODE=1280x1024
gksu gedit /etc/initramfs-tools/modules
When the text window appears, add the following line at the end of the file:uvesafb mode_option=1280x1024-24 mtrr=3 scroll=ywrap
echo FRAMEBUFFER=y | sudo tee /etc/initramfs-tools/conf.d/splash
sudo update-grub2
sudo update-initramfs -u
...a terminal window will appear. Enter your password when asked, hit the Enter key and wait for the command to finish. The terminal window will automatically close!The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 54422A4B98AB5139
gpg --keyserver keyserver.ubuntu.com --recv 505A2DD1
gpg --export --armor 505A2DD1 | sudo apt-key add -
Then repeat this step with every problematic key.