diff --git a/src/vid_nv_riva128.c b/src/vid_nv_riva128.c
index c44ca6246..3eeff57f6 100644
--- a/src/vid_nv_riva128.c
+++ b/src/vid_nv_riva128.c
@@ -1828,7 +1828,8 @@ static void riva128_mmio_write_l(uint32_t addr, uint32_t val, void *p)
 
 	addr &= 0xffffff;
 
-	pclog("RIVA 128 MMIO write %08X %08X %04X:%08X\n", addr, val, CS, cpu_state.pc);
+	//DO NOT REMOVE. This fixes a monstrous log blowup in win9x's drivers when accessing PFIFO.
+	if(!((addr >= 0x002000) && (addr <= 0x003fff))) pclog("RIVA 128 MMIO write %08X %08X %04X:%08X\n", addr, val, CS, cpu_state.pc);
 
 	switch(addr)
 	{