[economix]

I seem to be having a problem installing 0.5 on my Ubuntu 11.10 64 bit system.

economix@economix-desktop:~$ cd Desktop/
economix@economix-desktop:~/Desktop$ chmod +x Sigil-0.5.0-Linux-x86_64-Setup.bin 
economix@economix-desktop:~/Desktop$ sudo ./Sigil-0.5.0-Linux-x86_64-Setup.bin 
[sudo] password for economix: 

This will install Sigil on your computer.  Continue? [n/Y] Y


Where do you want to install Sigil? [/opt/sigil] 

Installing Sigil...
Extracting setup files...
Error in action ExecuteAction

Error in action InstallSelectedFiles

couldn't execute "/tmp/ijtmp_84209F33-EC37-7AFC-88F6-CAB27A5AB209/installkit": permission denied
    while executing
"open $cmd"
    (procedure "::InstallJammer::actions::InstallSelectedFiles" line 129)
    invoked from within
"::InstallJammer::actions::$component $this"
    while executing
"$obj execute"
    (procedure "::InstallJammer::ExecuteActions" line 69)
    invoked from within
"::InstallJammer::ExecuteActions $action -parent $id -conditions $eval"
    (procedure "::InstallJammer::actions::ExecuteAction" line 35)
    invoked from within
"::InstallJammer::actions::$component $this"
    while executing
"$obj execute"
    (procedure "::InstallJammer::ExecuteActions" line 69)
    invoked from within
"::InstallJammer::ExecuteActions Console"
    (procedure "::InstallJammer::InstallMain" line 11)
    invoked from within
"::InstallJammer::InstallMain"
    (procedure "ThemeMain" line 2)
    invoked from within
"ThemeMain "
    invoked from within
"if {![info exists ::InstallJammer]} { ThemeMain }"
    (file "/installkitvfs/main2.tcl" line 28407)
    invoked from within
"source [file join $::installkit::root main2.tcl]"
    (file "/installkitvfs/main.tcl" line 3)
economix@economix-desktop:~/Desktop$