Porblems Installing Quartus 11.0 on Ubuntu 11.04

Hi guys,

I am having some trouble installing Quartus 11 on my computer. I know this installation should work, as I have installed it for Ubuntu in a virtual machine on OSX, and now I have changed to a dual boot set up, and it doesn't seem to want to work. I have tried downloading quartus again, but have had no success.

Here is my terminal output:

root@tombox:/home/tom/Documents# chmod +x 11.0_quartus_free_linux.sh 
root@tombox:/home/tom/Documents# ls -l 11.0_quartus_free_linux.sh 
-rwx--x--x 1 tom tom 3482871696 2011-09-17 01:50 11.0_quartus_free_linux.sh
root@tombox:/home/tom/Documents# ./11.0_quartus_free_linux.sh 
/bin/sh: Can't open ./11.0_quartus_free_linux.sh
root@tombox:/home/tom/Documents# sudo ./11.0_quartus_free_linux.sh 
sudo: ./11.0_quartus_free_linux.sh: command not found

And the start of the contents of the file:

root@tombox:/home/tom/Documents# more 11.0_quartus_free_linux.sh # !/bin/sh#  This script was generated using Makeself 2.1.5
CRCsum="349748552"
MD5="89fb40e99cc43fe3715ce9257514862a"
TMPROOT=${TMPDIR:=/tmp}
export PATH=.:webinstall:$PATH
export LD_LIBRARY_PATH=.:webinstall:$LD_LIBRARY_PATH
label="Quartus II Web Edition (Free)"
script="altera_installer/bin/altera_installer_gui"
scriptargs="--standalone --install=quartus_free"
targetdir="11.0_quartus_free_linux"
filesizes="3482861954"
keep=y
print_cmd_arg=""
if type printf > /dev/null; then
    print_cmd="printf"
elif test -x /usr/ucb/echo; then
    print_cmd="/usr/ucb/echo"

So it's definitely there.

I'm stumped to be honest. Any help would be greatly appreciated :).

Thanks,

Tom