Hi Guys, I notice that the existing code assumes that color (+dstack and others) are all BYTE. For true colour to have any use, I need to pass a minimum of 16 bits around (32K maxiter) and this is a substantial change to FRACTINT code. I have started using several #ifdef WIN32 but the code is starting to look messy. Should we all move to 16 bit colour variables? I notice that using my 16 bit put_line() does bizarre things to guessing and tessaral. I am making good progress and should have a true colour 32 bit windows version with about WINFRACT v18 functionality out there in a week or two. I will then add bignum stuff and finally bring th code up to today. Comments please. Thanks, Paul. ---------------------------------------------------------- Paul de Leeuw Computers Central Coast Australia Email: pdeleeuw@deleeuw.com.au www: <http://www.deleeuw.com.au> ABN 72 360 822 562 ----------------------------------------------------------