I've been putting it off for many months because I was scared by many stories on the web of problems but I updated my IndyMkII to the latest core and it was a breeze. I downloaded the install package from Individual's website, read the readme contained in the lha and it was very easy. I am using a CRT so it may make it easier but all I had to change to preserve my HighGfx wb was to reflash the core with all the ones supplied and switch to VGA only to get rid of the vertical stripes. The update has fixed problems where the screen would momentarily blank doing some operations and I can now disable the on screen display which is helpful. PAL is also now centred.