diff --git a/crates/ui-egui/src/lib.rs b/crates/ui-egui/src/lib.rs
index 49ea140f..a4addbf3 100644
--- a/crates/ui-egui/src/lib.rs
+++ b/crates/ui-egui/src/lib.rs
@@ -389,6 +389,9 @@ impl LightcraftApp {
             let open = matches!(self.ui.dialog, Some(state::Dialog::SamModel { .. }));
             match (&download.error, open) {
                 (_, true) => {}
+                (Some(e), false) if e.contains("cancelled") => {
+                    self.toast(ctx, crate::i18n::tr("SAM 3 download stopped: it resumes where it left off next time."))
+                }
                 (Some(e), false) => self.toast_error(ctx, format!("The SAM 3 download failed: {e}")),
                 (None, false) if download.finished => {
                     self.toast_error(ctx, crate::i18n::tr("The SAM 3 model is installed: Object and Describe masks are ready."))
diff --git a/crates/ui-egui/src/panels/dialogs.rs b/crates/ui-egui/src/panels/dialogs.rs
index 67d495de..bc23383b 100644
--- a/crates/ui-egui/src/panels/dialogs.rs
+++ b/crates/ui-egui/src/panels/dialogs.rs
@@ -771,8 +771,10 @@ pub fn show(app: &mut LightcraftApp, ctx: &egui::Context) {
                 let informational = matches!(dlg, Dialog::About | Dialog::Shortcuts | Dialog::Settings { .. });
                 let sam = &app.session.segmenter;
                 let (sam_installed, sam_running, sam_failed) = (sam.installed(), sam.download_status().running, sam.download_status().error.is_some());
+                // no download location in this build: nothing to offer but the manual install
+                let sam_nowhere = !sam_installed && !sam_running && sam.mirrors().is_empty();
                 let cancel = match &dlg {
-                    Dialog::SamModel { .. } if sam_running || sam_installed => "Close",
+                    Dialog::SamModel { .. } if sam_running || sam_installed || sam_nowhere => "Close",
                     Dialog::SamModel { .. } => "Not Now",
                     _ => "Cancel",
                 };
@@ -794,7 +796,7 @@ pub fn show(app: &mut LightcraftApp, ctx: &egui::Context) {
                     Dialog::Merge { .. } => "Merge",
                     Dialog::ConfirmDelete { .. } => "Delete",
                     Dialog::SamModel { then: Some(_), .. } if sam_installed => "Continue",
-                    Dialog::SamModel { .. } if sam_installed || sam_running => "",
+                    Dialog::SamModel { .. } if sam_installed || sam_running || sam_nowhere => "",
                     Dialog::SamModel { error, .. } if error.is_some() || sam_failed => "Try Again",
                     Dialog::SamModel { .. } => "Download",
                     _ if informational => "Close",
@@ -876,7 +878,7 @@ fn sam_model_body(app: &mut LightcraftApp, ui: &mut egui::Ui, error: Option<&str
         "Object and Describe masks use SAM 3, Meta's segmentation model. It isn't part of LightCraft, and everything else works without it.",
     ));
     let dir = seg.dir.as_ref().map(|d| d.display().to_string()).unwrap_or_default();
-    ui.label(format!("{} {:.1} GB · {dir}", crate::i18n::tr("Download it once (about):"), gb(MODEL_BYTES)));
+    ui.label(format!("{} {:.1} GB, {} {dir}", crate::i18n::tr("A one-time download of about"), gb(MODEL_BYTES), crate::i18n::tr("saved in")));
     ui.label(
         egui::RichText::new(format!(
             "{} {LICENSE_NAME} — {}",
diff --git a/crates/ui-egui/src/tests_masking.rs b/crates/ui-egui/src/tests_masking.rs
index c3aac95c..2abc141f 100644
--- a/crates/ui-egui/src/tests_masking.rs
+++ b/crates/ui-egui/src/tests_masking.rs
@@ -644,14 +644,19 @@ fn ai_masks_without_the_model_offer_the_download() {
     assert_eq!(h.app.ui.dialog, Some(Dialog::SamModel { then: Some(("object".into(), "new".into())), error: None }));
     assert!(!h.app.session.segmenter.download_status().running, "nothing downloads without a yes");
     if h.app.session.segmenter.mirrors().is_empty() {
-        // Download: no location configured in this build → the reason, in the dialog
+        // no location configured in this build: no Download button (only Close), and an agent
+        // confirming anyway gets the reason; the dialog stays
+        h.step();
+        let r = h.request("ui.clickWidget", json!({"id": "button:dialogOk"}), T);
+        assert_eq!(r["ok"], false, "{r}");
         let r = h.request("ui.dialog.confirm", json!({}), T);
         assert_eq!(r["ok"], false, "{r}");
+        assert!(r["error"].as_str().unwrap_or_default().contains("LIGHTCRAFT_SAM3_MIRRORS"), "{r}");
         assert!(matches!(h.app.ui.dialog, Some(Dialog::SamModel { .. })), "stays open");
+    } else {
+        // with a mirror: Download starts it in the background (here it fails: nothing listens)
         let r = h.request("ui.clickWidget", json!({"id": "button:dialogOk"}), T);
         assert_eq!(r["ok"], true, "{r}");
-        let Some(Dialog::SamModel { error: Some(e), .. }) = &h.app.ui.dialog else { panic!("{:?}", h.app.ui.dialog) };
-        assert!(e.contains("LIGHTCRAFT_SAM3_MIRRORS"), "{e}");
     }
     // (a frame with the message laid out, so the buttons are where they are drawn)
     h.step();