I just installed Ubuntu 13.04 in my laptop Aspire-M3-5871TG, and I can't see anything (neither icons, ...). Only is visible the desktop background but I can open and work with the terminal. Maybe the problem is related with Nvidia Geforce GT 640M vs Unity.

I've tried several commands:

dconf reset -f /org/compiz/ 
unity --reset-icons &disown

and

unity --replace &

but nothing happens.

I've tried other commands as well:

sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update
sudo apt-get install nvidia-current

and nothing happens.

I've also tried to install tweak but is it not possible to find it. Thus, I can't do nothing ...

Definetely my laptop is not compatible with Ubuntu 13.04?