HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

Hello everyone. I'm looking for knowledgeable people who can help me. I downloaded a release from a popular tracker (Heroes 3, all Campaigns + all Chronicles + HoMM3 HD Launcher 3.27). I installed it on an old laptop connected to a 1920*1080 monitor, set the maximum resolution - everything is fine. I disconnected it from the monitor - I can't change the resolution to the standard 1024*600; it launches in 1920*1080 in a window. The laptop has an AMD C-50 with an integrated Radeon 6250. I don't want to update to the latest HD patch because with the old patch, all campaigns and chronicles launch in full HD from the Heroes menu. If I install the newest version of the patch, the background of the main menu changes (from a background with zombies to a background with a cavalryman), access to all campaigns remains, but access to the chronicles and previously saved games is lost, which is especially disappointing. How can I continue playing Heroes and Chronicles in full HD, while still being able to switch to 1024*600 and not lose access to saves from the chronicles, other campaigns, and single-player games? (I also don't know where they are located; they are not in the "games" folders inside the chronicles folders or in the root Heroes folder). This is a real problem! :) I would be grateful for any helpful advice.