Upside-down radar after refit
 

First time I went to radar depth this patrol I found the radar wouldn't work till I came up another eight feet or so. Took a look and found the dish spinning round at about bridge level. Wish I'd taken a screenie.

Traced it back to the boat getting a refit. Was it because my last patrol ended 1st April, or do those dockyard hands just like to do this kind of thing every now and again ?

Went to an earlier save and all's well now. TMO2. What gets me is the graphics and the function are so hand in hand, so even tho it's obviously just some kind of corruption of some setting or other, it's actually prety impressive !