Comment 4 for bug 873646

I investigated this problem little bit in deep - made some additional tests. All tests done on Ubuntu 11.10.

I did the following:
1. I purged the pinta 1.1 (installed from PPA) from system:
sudo apt-get purge pinta

2. Started Ubuntu Software Center and unchecked the Pinta sources from Software Sources.

3. I updated the Ubuntu repository:
sudo apt-get update

4. I installed Pinta from official repository:
sudo apt-get install pinta

As I see Pinta 1.0-3 is installed. Using <Alt>+<Tab> key and I can see a Pinta's icon. See attachment.

5. I have purged Pinta again:
sudo apt-get purge pinta

6. Started Ubuntu Software Center and checked back Pinta PPAs from Software Sources.

7. Updated Ubuntu repository:
sudo apt-get update

8. Installed Pinta 1.1 from PPA
sudo apt-get install pinta

Pinta 1.1 is installed. Using <Alt>+<Tab> and icon is not displayed. See attachment.

So it looks there is a problem in current Pinta 1.1 package installed from PPA.