I’ve got to configure my printer on the new UBUNTU release 8.04; everything was fine, printer on USB detected and so on but, when I’ve got to do the last magic click, the GUI asked me for a localhost password…
Obviously no password was right and I could not finish my setup.
Reading around I’ve found this little trick that might be usefull to someone else:

Alt-F2 to open application launcher and type

gksudo  system-config-printer

Ubuntu will ask your system password and then you’ll be able to configure, delete and modify your printers.

I was curious to try an IDE on Osx for Rails development and APTANA STUDIO seems to be the right product. (I do use TextMate as editor)

Aptana Studio is fully installed on my laptop but, when I try to install the RedRails plugin, it returns this error:

Requested operation cannot be performed because it would invalidate the current configuration. See details for more information.

Ruby Mylyn Connector Feature (Optional) (0.9.3.6479) requires feature
"org.eclipse.mylyn.context_feature (2.0.0.v20070628-1000)", or later version.

The solution: http://support.aptana.com/issues/browse/ROR-156

The most important steps are:

1. Went to Help=>Updates=>Find and Install. Installed three Eclipse updates that the system found. Installation of updates worked ok.
2. When the update window appears with RadRails updates, expand the tree and uncheck the box next to the Ruby Mylyn Connector Feature. This is an optional extension for users of Mylyn. You don’t need it, so you can safely uncheck the box and install.

This seems to works either on Windows, Osx and Linux