电脑播放音乐没声音！可是系统声音是正常的！听得到就是播放音乐和视频时就没声音了！用酷狗播放时他就每首歌一直跳跳跳播不了！用暴风是就哪个播放条就会动没声音！暴风播视频可以也是没声音！大神们！这是为什麽？
这是系统的信息
Time of this report: 6/18/2012, 14:00:19
Machine name: ZPKUZC4JIPBWIBI
Operating System: Windows 7 旗舰版 32-bit (6.1, Build 7600) (7600.win7_gdr.120401-1505)
Language: Chinese (Simplified) (Regional Setting: Chinese (Simplified))
System Manufacturer: System manufacturer
System Model: System Product Name
BIOS: BIOS Date: 05/27/09 10:10:29 Ver: 08.00.12
Processor: Intel(R) Celeron(R) CPU E1500 @ 2.20GHz (2 CPUs), ~2.2GHz
Memory: 4096MB RAM
Available OS Memory: 3584MB RAM
Page File: 1352MB used, 5811MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7600.16385 32bit Unicode
Description: 扬声器 (Realtek High Definition Audio)
Default Sound Playback: Yes
Default Voice Playback: Yes
Hardware ID: HDAUDIO\FUNC_01&VEN_10EC&DEV_0662&SUBSYS_1043837F&REV_1001
Manufacturer ID: 1
Product ID: 100
Type: WDM
Driver Name: RTKVHDA.sys
Driver Version: 6.00.0001.6299 (English)
Driver Attributes: Final Retail
WHQL Logo'd: Yes
Date and Size: 1/25/2011 18:54:04, 3386792 bytes
Other Files:
Driver Provider: Realtek Semiconductor Corp.
HW Accel Level: Basic
Cap Flags: 0xF1F
Min/Max Sample Rate: 100, 200000
Static/Strm HW Mix Bufs: 1, 0
Static/Strm HW 3D Bufs: 0, 0
HW Memory: 0
Voice Management: No
EAX(tm) 2.0 Listen/Src: No, No
I3DL2(tm) Listen/Src: No, No
Sensaura(tm) ZoomFX(tm): No
大神们知道为什麽吗？跪求！！！
系统自带的播放器不行！没声音！
追答那么就不知道了