UO Positioning system crashes

[Stides]

My UO positioning sytem in the newest version of razor always crashes when i enter certain areas on hybrid.

places it always crashes
-Hyloth dungeon
-The cave in t2a west of the city of the dead
-snowy death duel pit
-various other regions of t2a

When this crash occurs i cannot move my char at all. Im a sitting duck in pvp until i relog in.

Im using an older uo client because the new ones lag me and my crappy computer too much. Its version is 4.0.6a (patch 3)

this is the error i get in a big box in the middle of the screen as soon as i enter one of the problem areas with the UO Positioning system open.
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System.IO.EndOfStreamException: Unable to read beyond the end of the stream.
at System.IO.__Error.EndOfFile()
at System.IO.BinaryReader.FillBuffer(Int32 numBytes)
at System.IO.BinaryReader.ReadInt32()
at Ultima.TileMatrix.ReadStaticBlock(Int32 x, Int32 y)
at Ultima.TileMatrix.GetStaticBlock(Int32 x, Int32 y)
at Ultima.Map.RenderBlock(Int32 x, Int32 y, Boolean drawStatics)
at Ultima.Map.GetRenderedBlock(Int32 x, Int32 y, Boolean statics)
at Ultima.Map.GetImage(Int32 x, Int32 y, Int32 width, Int32 height, Bitmap bmp, Boolean statics)
at Ultima.Map.GetImage(Int32 x, Int32 y, Int32 width, Int32 height, Boolean statics)
at Assistant.MapUO.UOMapControl.FullUpdate()
at Assistant.MapUO.MapWindow.PlayerMoved()
at Assistant.PlayerData.set_Position(Point3D value)
at Assistant.PlayerData.ProcessMove(Direction dir)
at Assistant.PlayerData.MoveReq(Direction dir, Byte seq)
at Assistant.PacketHandlers.MovementRequest(PacketRea der p, PacketHandlerEventArgs args)
at Assistant.PacketHandler.ProcessViewers(ArrayList list, PacketReader p)
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NOTE* i do not crash in any of the problem areas if i do not have UO positioning sytem open

[Aquatic Elf]

I know this may sound like a pain in the arse, but could you provide some (or perhaps, even all?) locations (x,y) of where it occurs? That may help the devs fix the problem faster.

[Zippy]

You'll need to update your client, or just not use the UOPS.