When I load a *.csv file (delimited text) as a layer in QGIS, the scale bar shows degrees (for example 0 to 10 degrees). When I uncheck On the fly projection and change the units for feet or meters, the units changed to feet or meters but still stay to 10. My scale bar is 0 to 10 meters wich is impossible because the area covered by the points is more than a thousand kilometers... But when I use the measurements tools, the measure seems to be good. Also, when I use the buffer tool, if I write 0.15 it shows a buffer of about 10 km?
I tryed many projections type and the only one that seems to work is WGS 84 but I want something more precise like NAD 83 / Quebec Lambert because the data are in the east of Canada (In the province of Quebec).