Tif showing up at wrong location

Hi,

I have an issue with about 6 images (format .tif) not showing up at right location (ArcMap 10). They`re all located right to each other but not to my other data (personal GDB and shapefiles) My colleagues doesn`t have this problem, so this let me think that this is a settings issue. I have another mxd with .sid and there my image is showing up correctly.
I`ve searched a little bit and found that a checkbox on raster tab (at ArcMap options menu) could solve that. But that didn`t solve it.
Any tips, hints or anything else?

Thanks!