Check if you have updated Windows and have the latest drivers.
Some patches also require DX11 support...see if this one does and update accordingly.
its a DirectX 9.0c game and the patches does not require/add any of DX11 support.
- New default shaders cache.
- Faster generating shaders.
that might be the problem with 1.24, try 1.23 patch, besides i finished the game when still no patches are out and didnt have any problem / bugs.
i have your cpu and a GTX470 all maxout, the GT430 wont handle the game on max settings.