diff --git a/bin/llm-runner b/bin/llm-runner
index d675e14..8bf8be0 100755
--- a/bin/llm-runner
+++ b/bin/llm-runner
@@ -6,6 +6,17 @@
 
 set -euo pipefail
 
+# Sanitize environment:
+# TEMP/TMP are standard POSIX variables for temporary file directories.
+# If set to a sampling temperature (float/number), ROCm/libstdc++ crashes during initialization!
+if [ -n "${TEMP:-}" ] && [ ! -d "${TEMP}" ]; then
+    TEMPERATURE="${TEMPERATURE:-${TEMP}}"
+    unset TEMP
+fi
+if [ -n "${TMP:-}" ] && [ ! -d "${TMP}" ]; then
+    unset TMP
+fi
+
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 LOG_DIR="${LOG_DIR:-${SCRIPT_DIR}/logs}"
 mkdir -p "${LOG_DIR}"
@@ -45,7 +56,7 @@ LLAMA_SERVER="$(find_llama_server)"
 check_health() {
     local port="${1:-11434}"
     local host="${2:-127.0.0.1}"
-    if curl -s "http://${host}:${port}/health" 2>/dev/null | grep -q '"status":\s*"ok"\|"status":\s*"loading model"\|"ok"'; then
+    if curl -s "http://${host}:${port}/health" 2>/dev/null | grep -q '"status":\s*"ok"\|"ok"'; then
         return 0
     fi
     return 1
@@ -247,7 +258,7 @@ cmd_muse() {
     local tmpl="${TEMPLATE:-${SCRIPT_DIR}/templates/muse-glimmer/chat_template.jinja}"
 
     launch_instance "muse_solo" "$model" "${PORT:-11434}" "${CTX:-131072}" \
-        "$mmproj" "$tmpl" "${TEMP:-0.6}" "${TOP_P:-0.95}" "${TOP_K:-40}" \
+        "$mmproj" "$tmpl" "${TEMPERATURE:-${SAMPLING_TEMP:-0.6}}" "${TOP_P:-0.95}" "${TOP_K:-40}" \
         "${MIN_P:-0.05}" "${NGL:-99}" "${LOAD_MODE:-none}" "${FLASH_ATTN:-on}" \
         "${CTK:-q8_0}" "${CTV:-q8_0}" "${REASONING_PRESERVE:-true}"
 
@@ -270,7 +281,7 @@ cmd_superqwen() {
     local tmpl="${TEMPLATE:-${SCRIPT_DIR}/templates/Qwen3.8/chat_template.jinja}"
 
     launch_instance "superqwen_solo" "$model" "${PORT:-11434}" "${CTX:-262144}" \
-        "$mmproj" "$tmpl" "${TEMP:-0.6}" "${TOP_P:-0.95}" "${TOP_K:-40}" \
+        "$mmproj" "$tmpl" "${TEMPERATURE:-${SAMPLING_TEMP:-0.6}}" "${TOP_P:-0.95}" "${TOP_K:-40}" \
         "${MIN_P:-0.05}" "${NGL:-99}" "${LOAD_MODE:-none}" "${FLASH_ATTN:-on}" \
         "${CTK:-q8_0}" "${CTV:-q8_0}" "${REASONING_PRESERVE:-true}"
 
@@ -290,7 +301,7 @@ cmd_qwen4b() {
     local tmpl="${TEMPLATE:-${SCRIPT_DIR}/templates/Qwen3.5/chat_template.jinja}"
 
     launch_instance "qwen4b_solo" "$model" "${PORT:-11434}" "${CTX:-32768}" \
-        "$mmproj" "$tmpl" "${TEMP:-0.7}" "${TOP_P:-0.8}" "${TOP_K:-20}" \
+        "$mmproj" "$tmpl" "${TEMPERATURE:-${SAMPLING_TEMP:-0.7}}" "${TOP_P:-0.8}" "${TOP_K:-20}" \
         "${MIN_P:-0.05}" "${NGL:-99}" "${LOAD_MODE:-mmap}" "${FLASH_ATTN:-on}" \
         "${CTK:-q8_0}" "${CTV:-q8_0}" "false"
 
@@ -315,7 +326,7 @@ cmd_custom() {
     local name="custom_solo"
 
     launch_instance "${name}" "$model" "${PORT:-11434}" "${CTX:-65536}" \
-        "$mmproj" "$tmpl" "${TEMP:-0.6}" "${TOP_P:-0.95}" "${TOP_K:-40}" \
+        "$mmproj" "$tmpl" "${TEMPERATURE:-${SAMPLING_TEMP:-0.6}}" "${TOP_P:-0.95}" "${TOP_K:-40}" \
         "${MIN_P:-0.05}" "${NGL:-99}" "${LOAD_MODE:-none}" "${FLASH_ATTN:-on}" \
         "${CTK:-q8_0}" "${CTV:-q8_0}" "${REASONING_PRESERVE:-false}"
 
diff --git a/bin/llm-tui b/bin/llm-tui
index 8c5d63d..169f048 100755
--- a/bin/llm-tui
+++ b/bin/llm-tui
@@ -725,9 +725,13 @@ class LLMConfigApp(App):
         mmproj_val = str(self.query_one("#select-mmproj", Select).value or "")
 
         env = os.environ.copy()
+        # Clean up POSIX temp directory variables that could collide with sampling parameters
+        env.pop("TEMP", None)
+        env.pop("TMP", None)
+
+        env["TEMPERATURE"] = self.query_one("#input-temp", Input).value or "0.6"
         env["CTX"] = self.query_one("#input-ctx", Input).value or "65536"
         env["PORT"] = self.query_one("#input-port", Input).value or "11434"
-        env["TEMP"] = self.query_one("#input-temp", Input).value or "0.6"
         env["TOP_P"] = self.query_one("#input-top-p", Input).value or "0.95"
         env["MIN_P"] = self.query_one("#input-min-p", Input).value or "0.05"
         env["NGL"] = self.query_one("#input-ngl", Input).value or "99"
@@ -757,7 +761,8 @@ class LLMConfigApp(App):
             f"    Port:          {env['PORT']} | Context: {env['CTX']} | KV Quant: {env['CTK']}\n"
         )
 
-        subprocess.Popen(cmd, env=env, cwd=str(SCRIPT_DIR), start_new_session=True)
+        runner_log = open(LOGS_DIR / "runner.log", "a")
+        subprocess.Popen(cmd, env=env, cwd=str(SCRIPT_DIR), stdout=runner_log, stderr=runner_log, start_new_session=True)
         self.notify(f"Launching {preset} server. Switching to Status & Logs...", severity="information")
         self.query_one(TabbedContent).active = "tab-status"
         self.action_refresh_status()