With each patch it seems some people note problems going away whereas the unlucky ones note more problems being added! A fair suggestion is to totally uninstall and then reinstall the game (a pain, I know...). Then, use the FULL version of the patch. These incremental ones don't appear to be made properly and are actually causing problems themselves.
If you don't fancy uninstalling, and you used the incremental patch, you can still use the full patch over the top of it. I did it myself, so I'm speaking from experience. Ever since I installed 1.3, I had annoying lag and what's worse, CTDs. I've never had a CTD in BF2 before (although I know plenty of people have). I installed the full 1.3 patch over the top of my already-1.3 BF2, and BANG. It works again.
Just another thing to try if you feel like it.