I received the Philips PSC724 sound card for Christmas and since I installed it, I have been getting strange sound every time the computer does something graphically intensive (like play a game or movie). I soon realised that this problem was caused by my graphics card sitting too close to my sound card, so yesterday I removed the graphics card and everything was fine - for about an hour! At that point, my computer started playing all sounds really quietly! I can only just about here music/movies (or any sound) when I turn all the volumes up to the max. Does anyone know what might be the cause of this – have I broken my sound card? I have tried reinstalling the drivers and I tried removing the card to switch back to inbuilt sound, which was working fine. Thanks in advance.