Played the game with the new patch for about 2.5 hours tonight. Around 2 hours in, the sound effects started cutting out in battles. It started with no sound for arrows fired from Archers, then spread to all attacks from all units, and then eventually spread to the strategic map. This happened over the course of 5 - 10 turns.
Vista x64
Operating System: Windows Vista™ Ultimate (6.0, Build 6002) Service Pack 2 (6002.vistasp2_gdr.100608-0458)
Language: English (Regional Setting: English)
System Manufacturer: Gateway
System Model: P-173XL FX
BIOS: Ver 1.00PARTTBL
Processor: Intel(R) Core(TM)2 Duo CPU
T8300 @ 2.40GHz (2 CPUs), ~2.4GHz
Memory: 4094MB RAM
Page File: 2469MB used, 5912MB available
Card name: NVIDIA GeForce 8800M GTS