I have loaded some tab delimited text data into QGis to interpolate the points. When I get to the interpolation (IDW) part everything breaks down. The output raster file does not align with the original data. The difference in alignment differ depending on how many rows and columns I choose for the output file. If I choose the standard 300 x 300 the raster is south of the original data and if I choose like 400 x 400 it goes north of the original data..
I'm a bit new to QGIS, perhaps I'm not checking a box somewhere or something!?