diff --git a/Source/cursor.cpp b/Source/cursor.cpp
index 827315e0f..69655c4dc 100644
--- a/Source/cursor.cpp
+++ b/Source/cursor.cpp
@@ -292,7 +292,7 @@ void CheckCursMove()
 	if (sbookflag && MouseX > RIGHT_PANEL && MouseY <= SPANEL_HEIGHT) {
 		return;
 	}
-	if ((chrflag || questlog) && MouseX < RIGHT_PANEL) {
+	if ((chrflag || questlog) && MouseX < 320 && MouseY <= SPANEL_HEIGHT) {
 		return;
 	}
 
diff --git a/Source/player.cpp b/Source/player.cpp
index d172c6154..74d332eb8 100644
--- a/Source/player.cpp
+++ b/Source/player.cpp
@@ -3688,8 +3688,8 @@ void CheckPlrSpell()
 	}
 
 	if (pcurs != CURSOR_HAND
-	    || MouseY >= PANEL_TOP
-	    || (chrflag && MouseX < 320 || invflag && MouseX > RIGHT_PANEL)
+	    || (MouseY >= PANEL_TOP && MouseX >= PANEL_LEFT && MouseX <= RIGHT_PANEL) // allows casting spells through the sides of the main panel if it doesn't cover the whole screen
+	    || ((chrflag || questlog) && MouseX < 320 && MouseY < SPANEL_HEIGHT) || (invflag && MouseX > RIGHT_PANEL && MouseY < SPANEL_HEIGHT)
 	        && rspell != SPL_HEAL
 	        && rspell != SPL_IDENTIFY
 	        && rspell != SPL_REPAIR
diff --git a/defs.h b/defs.h
index 1a134dc5b..4c44b4649 100644
--- a/defs.h
+++ b/defs.h
@@ -91,8 +91,8 @@
 #define PAL16_RED		224
 #define PAL16_GRAY		240
 
-#define SCREEN_WIDTH	640
-#define SCREEN_HEIGHT	480
+#define SCREEN_WIDTH	1280
+#define SCREEN_HEIGHT	960
 
 #define ZOOM_WIDTH		384
 #define ZOOM_HEIGHT		224