I am new to QGIS and pretty ignorant with the subject, but I want to be able to see the latitude / longitude of a point (with a mouse click) in Quantum GIS. I imported a shapefile (roads of finland from here : http://www.maanmittauslaitos.fi/en/node/6567 ), and there is a box a the bottom that show the current coordinate in unknow units to me : 521636,6947168, same the coordinate capture don't show lat/long. The coordinate system seems to be WGS84 - 4326.
From http://www.maanmittauslaitos.fi/en/node/6567, I can read :
The datasets can be downloaded from this website in the current national coordinate system ETRS-TM35FIN.
When you open QGIS, set the projection system to EPSG:3067 (according to spatialreference). With Qgis 1.7, you can also apply the project coordinates system from a given layer by right clicking it and choose the right option (something like : Define the coordinates sytem with the current layer coordinates system - my qgis is in french)