Yes, I have the same problem with the 1720. The 1720 is the same as the 1520 but with a 17' screen.
Version: Linux laptop 2.6.24-19-generic #1 SMP Wed Aug 20 17:53:40 UTC 2008 x86_64 GNU/Linux Ubuntu 8.04.1 Release: 8.04
Yes, I have the same problem with the 1720. The 1720 is the same as the 1520 but with a 17' screen.
Version: Linux laptop 2.6.24-19-generic #1 SMP Wed Aug 20 17:53:40 UTC 2008 x86_64 GNU/Linux
Ubuntu 8.04.1
Release: 8.04