text in menus and tooltips almost invisible

Binary package hint: vidalia

The text color is almost the same as the text background. Menu items become readable when inverted by mouseover, but I cannot read the tooltips. My standard color scheme for menus is dark background, light text.

Skins: "Cleanlooks", "Plastique" - but: "CDE" and "Motif": tooltips and inverted text are unreadable, "Windows": tooltips only

vidalia:
  Installed: 0.2.12-1~lucid1
  Candidate: 0.2.12-1~lucid1
  Version table:
 *** 0.2.12-1~lucid1 0
        500 http://deb.torproject.org/torproject.org/ lucid/main Packages
        100 /var/lib/dpkg/status
     0.1.15-3 0
        500 http://de.archive.ubuntu.com/ubuntu/ lucid/universe Packages

using Ubuntu 10.04.2 LTS
Release: 10.04