kpackagekit error dialog hides error message

[Diggory]

Binary package hint: kpackagekit

When I click on a .deb package to install it, I get an error where two error dialogs show up; the first saying:
  "Unknown error - ..."
  Unknown error, please rep...
  More information is availab...
(with a details button)

And the second dialog:
  "KPackageKit"
  Sorry, an error occurred
shows on top, and closes both dialogs when I click OK, thus preventing me from clicking the details button in the underneath dialog to see what the actual error was. I think I know what the problem is, but the point is that the error message should be readable.

Using 9.04 beta with kpackagekit version 0.4-0ubuntu4.

[Siegie (siegie)]

I can confirm this.
I can't install the virtualbox deb using kpackagekit

[Leufert (leufert)]

The exact same thing happens for me.
Have tried to install alot of program without success...
i.e.
virtualbox-2.2_2.2.0-45846_Ubuntu_intrepid_i386.deb
and
adept-installer_2.1.2_i386.deb