I am running gutsy.

I don't understand if I am doing something wrong or if there is a problem with the package I downloaded.

When I install sw using apt-get command line, or adept package manager, everything is OK.

But for some sw that I don't find in the repositories, I downloaded the installation package (.deb file explicitly indicated for Ubuntu/Debian). I did it for acrobat reader and limewire.

I doubleclick on the file, the adept installer pops up, I push the button "install", I get asked for the SU password, and it begins working. Everything seems to go well, because I see the HD light flashing, so I imagine that it is installing something. After a while, however, without giving any diagnostics, the program terminates but NOTHING HAS BEEN INSTALLED.

I tried to serch manually the files listed in the package description, and no one is present on my HD.

Does anybody have a suggestion?

Thanks

I know that it is very similar to Adept but have you tried using Synaptic Package Manager?
http://packages.ubuntu.com/gutsy/synaptic
In my opinion it is the best PM by far.

so, practically:

I have my

LimeWireLinux.deb

file on a local folder.

What shall I do to install it?

solved.

I logged as root and did it by shell with the command

gdebi package.deb

So apparently it is the GUI that is bugged.