False contacts while on the surface?

[SlimDuce]

Howdy folks, I seem to be having a problem. I keep getting sounds contacts while on the surface, and radar contacts when I have no radar. SO frustrating, really killing the experiance for me at the moment. I have a clean install and am patched to 1.3.Matter of fact U unistalled, reinstalled, re-ran the patch before any mods were added and it is still happening. I am running several mods, but they are all graphical and sound mods with the expection of the Natural Sinking mod and the fewer radio contacts. Anyone have any idea why this would be happening? Thank ya'll