我的浏览器打开后只出现空白页，一打开其他网页不是弹出“exploer.exe遇到问题，
即将关闭。”就是速度滑动条显示一半就停滞不前。重新下载IE却装不上，说已有最新版本。(腾讯浏览器能用,操作系统xp,IE6.0.)
求高手帮忙！！
重装操作系统真的很难过！

这是日志文件：
Logfile of HijackThis v1.99.1
Scan saved at 12:03:31, on 2006-04-25
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
E:\rising\Rising\Rav\CCenter.exe
C:\WINDOWS\System32\svchost.exe
E:\rising\Rising\Rav\Ravmond.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
E:\rising\Rising\Rav\RavTask.exe
C:\Program Files\3721\Dlaccel\YDownloader.exe
C:\WINDOWS\system32\ctfmon.exe
E:\rising\Rising\Rav\Ravmon.exe
E:\rising\Rising\Rav\RavStub.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\system32\wscntfy.exe
E:\Tencent\TT\TTraveler.exe
E:\FlashGet\flashget.exe
C:\WINDOWS\system32\conime.exe
C:\WINDOWS\system32\service.exe
C:\WINDOWS\system32\rundll32.exe
C:\WINDOWS\system32\rundll32.exe
E:\rising\Rising\Rav\RsAgent.exe
C:\WINDOWS\msagent\AgentSvr.exe
D:\Downloads\HijackThis.exe
e:\WinRAR\WinRAR.exe
C:\DOCUME~1\LINYTO~1.1-8\LOCALS~1\Temp\Rar$EX06.924\HijackThis.exe

R3 - URLSearchHook: 雅虎助手 - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\assist\yasbar.dll
O2 - BHO: XBTP05430 - {1105C073-88DE-4b63-B795-07B06C5A7E7E} - C:\PROGRA~1\MY137T~1\my171.dll
O2 - BHO: MMSAssist - {6671A431-5C3D-463d-A7CF-5587F9B7E191} - C:\PROGRA~1\MMSASS~1\Mmsass~1.dll
O2 - BHO: std software - {6A512BF7-EC78-4e8d-9841-6C02E8FA9838} - C:\WINDOWS\SYSTEM32\stdup.dll
O2 - BHO: IeCatch2 Class - {A5366673-E8CA-11D3-9CD9-0090271D075B} - E:\FlashGet\jccatch.dll
O3 - Toolbar: FlashGet Bar - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - E:\FlashGet\fgiebar.dll
O3 - Toolbar: 雅虎助手 - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\assist\yasbar.dll
O3 - Toolbar: My137Toolbar - {C49DD894-C6DE-4910-8C41-BA20F852D8BC} - C:\Program Files\My137Toolbar\my171.dll
O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [MSPY2002] C:\WINDOWS\system32\IME\PINTLGNT\ImScInst.exe /SYNC
O4 - HKLM\..\Run: [TkBellExe] rem "C:\Program Files\Common Files\Real\Update_OB\realsched.exe"  -osboot
O4 - HKLM\..\Run: [RavTask] "E:\rising\Rising\Rav\RavTask.exe" -system
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [YLive.exe] rem C:\PROGRA~1\Yahoo!\ASSIST~1\YLive.exe
O4 - HKLM\..\Run: [dl_accel] C:\Program Files\3721\Dlaccel\YDownloader.exe
O4 - HKLM\..\Run: [service] C:\WINDOWS\system32\service.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Global Startup: IE-BAR.lnk = ?
O8 - Extra context menu item:  >> 彩信发送 << - res://C:\Program Files\MMSAssist\Mmsass~1.dll/mms.htm
O8 - Extra context menu item: &使用下载加速专家下载 - C:\Program Files\3721\Dlaccel\geturl.htm
O8 - Extra context menu item: 使用网际快车下载 - E:\FlashGet\jc_link.htm
O8 - Extra context menu item: 使用网际快车下载全部链接 - E:\FlashGet\jc_all.htm
O8 - Extra context menu item: 添加到雅虎订阅(&Y) - res://C:\PROGRA~1\Yahoo!\ASSIST~1\assist\yrss.dll/YRSSMENUEXT
O8 - Extra context menu item: 雅虎搜索 - res://C:\PROGRA~1\Yahoo!\Assistant\Assist\yasbar.dll/246
O9 - Extra button: (no name) - {6671A433-5C3D-463d-A7CF-5587F9B7E191} - C:\PROGRA~1\MMSASS~1\Mmsass~1.dll
O9 - Extra 'Tools' menuitem: MMSAssist工具条设置 - {6671A433-5C3D-463d-A7CF-5587F9B7E191} - C:\PROGRA~1\MMSASS~1\Mmsass~1.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O17 - HKLM\System\CCS\Services\Tcpip\..\{E7300CCB-4321-4A72-8B3C-D1EE8353A0C5}: NameServer = 202.106.0.20 221.10.251.197
O23 - Service: Gray_Pigeon_Server (GrayPigeonServer) - Unknown owner - C:\WINDOWS\G_Server1.2.exe
O23 - Service: Macromedia Licensing Service - Macromedia - C:\Program Files\Common Files\Macromedia Shared\Service\Macromedia Licensing.exe
O23 - Service: Rising Process Communication Center (RsCCenter) - Beijing Rising Technology Co., Ltd. - E:\rising\Rising\Rav\CCenter.exe
O23 - Service: RsRavMon Service (RsRavMon) - Beijing Rising Technology Co., Ltd. - E:\rising\Rising\Rav\Ravmond.exe