Hoi Ron, thanks for this pointers.
So my conda environment says: > conda list sdl # packages in environment at C:\Users\anastas\AppData\Local\radioconda\envs\gnuradio310: # # Name Version Build Channel gnuradio-video-sdl 3.10.9.2 py312habfa7bf_0 conda-forge sdl 1.2.68 h21dd15a_0 conda-forge sdl2 2.30.7 he0c23c2_0 conda-forge and then inside the directory with installed libraries I see (gnuradio310) C:\Users\anastas\AppData\Local\radioconda\envs\gnuradio310\Library\lib>dir *sdl* Directory of C:\Users\anastas\AppData\Local\radioconda\envs\gnuradio310\Library\lib 01/18/2024 10:30 AM 4,430 gnuradio-video-sdl.lib 09/26/2023 03:24 PM 46,896 SDL.lib 09/02/2024 12:29 AM 10,505,224 SDL2-static.lib 09/02/2024 12:28 AM 183,824 SDL2.lib 09/02/2024 12:27 AM 4,208 SDL2main.lib 09/02/2024 12:29 AM 446,426 SDL2_test.lib 09/26/2023 03:24 PM 14,806 SDLmain.lib 7 File(s) 11,205,814 bytes 0 Dir(s) 432,057,176,064 bytes free None of these files are "dl12-compat". So, is there an easy fix to that on my side? Perhaps install a lower version of sdl? thanks Achilleas PS: I have given a simple student project for decoding NOAA APT satellite data and display the image on the scree, so this is why I am using the sdl. I really do not like the time-raster sink because it is not as fast as I want it. Other than that, I rarely use the block.