diff --git a/configure b/configure
index bad5858..dd4c489 100755
--- a/configure
+++ b/configure
@@ -670,14 +670,34 @@ function menu() {
 	fi
 }
 
-SELECTED_MENU_ITEM=""
-MENU_SIZE=("20" "76" "12")
-INPUTBOX_SIZE=("11" "76")
-EDITTEXT_SIZE=("16" "76")
-RADIOLIST_SIZE=("20" "76" "8")
-BUILDLIST_SIZE=("20" "76" "8")
-HELP_POPUP_SIZE=("8" "66")
-CONFIRM_SIZE=("8" "66")
+function init_menu_size() {
+	local cols
+	local rows
+	cols=$(tput cols)  || cols=80
+	rows=$(tput lines) || rows=24
+
+	local max_h=$((rows - 3))
+	local max_w=$((cols - 6))
+
+	SELECTED_MENU_ITEM=""
+	MENU_SIZE=("$max_h" "$max_w" "$((max_h - 8))")
+	INPUTBOX_SIZE=("11" "$max_w")
+	EDITTEXT_SIZE=("$max_h" "$max_w")
+	RADIOLIST_SIZE=("$max_h" "$max_w" "$((max_h - 12))")
+	BUILDLIST_SIZE=("$max_h" "$max_w" "$((max_h - 12))")
+	HELP_POPUP_SIZE=("$((max_h - 12))" "$((max_w - 10))")
+	CONFIRM_SIZE=("8" "66")
+}
+
+#SELECTED_MENU_ITEM=""
+#MENU_SIZE=("20" "76" "12")
+#INPUTBOX_SIZE=("11" "76")
+#EDITTEXT_SIZE=("16" "76")
+#RADIOLIST_SIZE=("20" "76" "8")
+#BUILDLIST_SIZE=("20" "76" "8")
+#HELP_POPUP_SIZE=("8" "66")
+#CONFIRM_SIZE=("8" "66")
+init_menu_size
 
 
 ################################################
@@ -812,7 +832,7 @@ function PARTITIONING_ROOT_FS_menu()  {
 function PARTITIONING_USE_LUKS_tag()   { echo " ├ Use LUKS"; }
 function PARTITIONING_USE_LUKS_label() { on_off_label "$PARTITIONING_USE_LUKS" " ├ "; }
 function PARTITIONING_USE_LUKS_show()  { [[ $PARTITIONING_SCHEME != "custom" ]] && one_of "$PARTITIONING_SCHEME" "classic_single_disk" "btrfs_centric"; }
-function PARTITIONING_USE_LUKS_help()  { echo "Determines if LUKS will be used to encrypt your root partition."; }
+function PARTITIONING_USE_LUKS_help()  { echo "Determines if LUKS will be used to encrypt your root partition. Export the desired encryption key via export GENTOO_INSTALL_ENCRYPTION_KEY="..." before installing."; }
 function PARTITIONING_USE_LUKS_menu()  {
 	on_off_toggle "PARTITIONING_USE_LUKS"
 	UNSAVED_CHANGES=true
@@ -821,7 +841,7 @@ function PARTITIONING_USE_LUKS_menu()  {
 function PARTITIONING_ZFS_ENCRYPTION_tag()   { echo " ├ ZFS Encryption"; }
 function PARTITIONING_ZFS_ENCRYPTION_label() { on_off_label "$PARTITIONING_ZFS_ENCRYPTION" " ├ "; }
 function PARTITIONING_ZFS_ENCRYPTION_show()  { [[ $PARTITIONING_SCHEME != "custom" ]] && one_of "$PARTITIONING_SCHEME" "zfs_centric" && one_of "$PARTITIONING_ZFS_POOL_TYPE" "standard"; }
-function PARTITIONING_ZFS_ENCRYPTION_help()  { echo "Determines if ZFS encryption will be used to encrypt your root partition."; }
+function PARTITIONING_ZFS_ENCRYPTION_help()  { echo "Determines if ZFS encryption will be used to encrypt your root partition. Export the desired encryption key via export GENTOO_INSTALL_ENCRYPTION_KEY="..." before installing."; }
 function PARTITIONING_ZFS_ENCRYPTION_menu()  {
 	on_off_toggle "PARTITIONING_ZFS_ENCRYPTION"
 	UNSAVED_CHANGES=true