I hope someone can help me for this: I'm doing my masters thesis in Slovenia (in the field of wildlife management), for this I got a Shapefile of slovenian data by the University. As a main layer, I use CORINELandCover and World borders (TM_WORLD_BORDERS-0.3) in WGS84. When I import the slovenian layer (Data layer strictly confidential, but exactly the same problem when I import this layer: Grid 100m x 100m.zip), it absolutely doesn't match the location where it should be projected on the CORINE- and WorldBorder-layer. I'don't know the coordinate system of the slovenian shapes, but when importet into QGIS, it tells me that it's WGS84, which cannot be true, because when I zoom to the slovenian layer, the coordinates shown in the "Current map coordinate" (right, down) are definitely not WGS84 (it gives me the following extends: 342637,26823 : 656728,197123).
I have no idea what the problem is, maybe QGIS doesn't know this coordinate system, but in this case, shouldn't it report an error message regarding this?