diff --git a/Units/MMLAddon/PSInc/Wrappers/extensions.inc b/Units/MMLAddon/PSInc/Wrappers/extensions.inc
index b125994..ba14ff9 100644
--- a/Units/MMLAddon/PSInc/Wrappers/extensions.inc
+++ b/Units/MMLAddon/PSInc/Wrappers/extensions.inc
@@ -170,21 +170,7 @@ end;
 procedure ext_OpenScriptEx(FileName: string; Run: boolean);
 begin
   FileName := SetDirSeparators(FileName);
-  with SimbaForm do
-  begin
-    AddTab();
-    with CurrScript do
-    begin
-      SynEdit.Lines.LoadFromFile(FileName);
-      StartText := SynEdit.Lines.Text;
-      ScriptName := ExtractFileNameOnly(FileName);
-      ScriptFile := FileName;
-      ScriptChanged := False;
-    end;
-    RefreshTab();
-    UpdateTitle();
-  end;
-
+  SimbaForm.LoadScriptFile(FileName,True,false);
   if (Run) then
     SimbaForm.RunScript();
 end;
diff --git a/Units/MMLAddon/PSInc/Wrappers/math.inc b/Units/MMLAddon/PSInc/Wrappers/math.inc
index 07dc6c7..1d41e35 100644
--- a/Units/MMLAddon/PSInc/Wrappers/math.inc
+++ b/Units/MMLAddon/PSInc/Wrappers/math.inc
@@ -107,6 +107,16 @@ begin
   Result:=Random(Abs(aFrom-aTo))+Min(aTo,AFrom);
 end;
 
+function ps_Random(Int: integer): integer; extdecl;
+begin
+  result := Random(int);
+end;
+
+function ps_RandomE : extended;
+begin
+  result := Random;
+end;
+
 function ps_ArcTan2(y,x : extended) : extended;  extdecl;
 begin
   result := ArcTan2(y,x);
diff --git a/Units/MMLAddon/PSInc/Wrappers/other.inc b/Units/MMLAddon/PSInc/Wrappers/other.inc
index c793ecc..e12cedb 100644
--- a/Units/MMLAddon/PSInc/Wrappers/other.inc
+++ b/Units/MMLAddon/PSInc/Wrappers/other.inc
@@ -37,21 +37,15 @@ begin;
 end;
 {$ENDIF}
 
-procedure ps_Wait(t: Integer); extdecl;
+procedure ps_Wait(t: DWord); extdecl;
 {$ifdef MSWINDOWS}
 begin
-  if t < 0 then
-    raise Exception.CreateFmt('The given wait time ([%d]) is invalid.',[t])
-  else
-    Sleep(t);
+  Sleep(t);
 end;
 {$else}
 var
   EndTime : DWord;
 begin
-  if t < 0 then
-    raise Exception.CreateFmt('The given wait time ([%d]) is invalid.',[t]);
-
   if t > 50 then
   begin;
     EndTime := GetTickCount + t;
@@ -266,11 +260,6 @@ begin
             '+//1sR/NLyhCQ==')));
 end;
 
-function ps_Random(Int: integer): integer; extdecl;
-begin
-  result := Random(int);
-end;
-
 procedure ps_SetClipBoard(const Data: string); extdecl;
 begin
   try
diff --git a/Units/MMLAddon/PSInc/psexportedmethods.inc b/Units/MMLAddon/PSInc/psexportedmethods.inc
index 59b2e19..87b60e3 100644
--- a/Units/MMLAddon/PSInc/psexportedmethods.inc
+++ b/Units/MMLAddon/PSInc/psexportedmethods.inc
@@ -76,6 +76,8 @@ AddFunction(@ps_point,'function Point(x,y:integer) : TPoint;');
 AddFunction(@ps_Distance,'function Distance(xs,ys,xe,ye : integer) : integer;');
 AddFunction(@ps_hypot,'function Hypot(X, Y: Extended): Extended;');
 AddFunction(@ps_RandomRange,'function RandomRange(aFrom,aTo: Integer): Integer;');
+AddFunction(@ps_Random,'function Random(Int: integer): integer;');
+AddFunction(@ps_RandomE,'function RandomE: extended;');
 AddFunction(@ps_incex,'procedure IncEx(var x : integer; increase : integer);');
 AddFunction(@ps_DecEx,'procedure DecEx(var x : integer; Decrease : integer);');
 AddFunction(@ps_BinCoe,'function BinCoe(a, b: LongInt): Extended;');
@@ -160,8 +162,8 @@ AddFunction(@ps_ExtractFileExt,'function ExtractFileExt(const FileName: string):
 
 {other}
 SetCurrSection('Other');
-AddFunction(@ps_Wait, 'procedure wait(t: integer);');
-AddFunction(@ps_Wait, 'procedure Sleep(t: integer);');
+AddFunction(@ps_Wait, 'procedure wait(t: LongWord);');
+AddFunction(@ps_Wait, 'procedure Sleep(t: LongWord);');
 {$IFNDEF MML_EXPORT_THREADSAFE}
 AddFunction(@ps_GetTClient,'function GetTClient : TClient;');
 AddFunction(@ps_SetSupressExceptions, 'procedure SetSupressExceptions(Supress : boolean);');
@@ -180,7 +182,6 @@ AddFunction(@ps_DecodeDate,'procedure DecodeDate ( const SourceDate  : TDateTime
 AddFunction(@ps_ConvertTime,'procedure ConvertTime(Time: integer; var h, m, s: integer);');
 AddFunction(@ps_HakunaMatata,'procedure HakunaMatata;');
 AddFunction(@ps_Simba,'procedure Simba;');
-AddFunction(@ps_Random,'function Random(Int: integer): integer;');
 AddFunction(@ps_PlaySound,'procedure PlaySound( Sound : string);');
 AddFunction(@ps_StopSound,'procedure StopSound;');
 {$IFNDEF MML_EXPORT_THREADSAFE}