Strange Usb Problem

Greetings:

I'm having a serious problem with my computer, specifically the mouse. The mouse just seems to go 'dead' randomly during use, sometimes every few minutes, sometimes not for serveral hours of use. the only way to get it responding again is to physically unplug the usb connector from the computer, and plug it back in a few seconds later. This makes the mouse start working again, but the problem happens again and again. I've tried several different USB mice on this system, and all have exactly the same problem.

System:
OS: Winxp pro sp2

Mouse: Logitech MX510
Key: Logitech G15

Case: Thermaltake VD100BWS AgUILA SECC Black Case
CPU: Intel E6600 Core Duo 2 2.4G 4MB 1066G FSB
MB: Asus P5B
HDD: Seagate 320G SATAII 7200rpm 16M Cache
PSU: Thermaltake tough power 700W
RAM: 2 X SuperTalent 1G PC-6400 800 DDR2
Vid: XFX 8800GTS 640 pcie DDR3 PVT80GTHF9
Snd: X-FI XtremeGamer
DVD: Sony DRU-820A DVDR Dual/Double Layer

I've tried uninstalling the mouse software, and uninstalling the device from the device manager. Tried plugging the mouse into a powered USB hub, directly into the computer, and even with a PS/2 adapter. Same problem with all (except the PS/2 adapter, with that, the mouse will just occasionally go 'crazy'. wildly whipping around the screen and sending clicks without me doing anything, or any way to stop it)

I've tried updating the MB bios, scanning for adware/trojans/virii. Everything looks fine there.

I'm wondering if it's possible the mouse or usb drivers have become corrupt somehow? If anyone can offer any suggestions or help, I'd be very grateful. This is driving me insane!

hijack this log:

Logfile of HijackThis v1.99.1
Scan saved at 3:03:33 PM, on 4/21/2007
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\csrss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\ZoneLabs\vsmon.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
C:\Program Files\DAEMON Tools\daemon.exe
C:\Program Files\Creative\Shared Files\Module

Loader\DLLML.exe
C:\Program Files\Creative\Shared Files\Module

Loader\DLLML.exe
C:\Program Files\Creative\Sound Blaster X-Fi\Volume

Panel\VolPanel.exe
C:\WINDOWS\CTHELPER.EXE
C:\WINDOWS\system32\CTXFIHLP.EXE
C:\PROGRA~1\Grisoft\AVG7\avgcc.exe
C:\WINDOWS\SYSTEM32\CTXFISPI.EXE
C:\WINDOWS\system32\svchost.exe
C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
C:\Program Files\Common Files\Logitech\LCD

Manager\lcdmon.exe
C:\Program Files\Common Files\Logitech\G-series

Software\LGDCore.exe
C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
C:\Program Files\Common Files\Logitech\LCD

Manager\Applets\LCDClock.exe
C:\Program Files\Common Files\Logitech\LCD

Manager\Applets\LCDCountdown.exe
C:\Program Files\Diskeeper

Corporation\Diskeeper\DkService.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Program Files\Creative\ShareDLL\CADI\NotiMan.exe
C:\WINDOWS\System32\alg.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\WINDOWS\system32\NOTEPAD.EXE
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\NOTEPAD.EXE
C:\Program Files\Windows NT\Accessories\WORDPAD.EXE
C:\Program Files\a-squared Anti-Malware\a2guard.exe
C:\Program Files\Hijackthis\HijackThis.exe

O2 - BHO: (no name) -

{53707962-6F74-2D53-2644-206D7942484F} -

C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O4 - HKLM\..\Run: [Zone Labs Client] "C:\Program

Files\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKLM\..\Run: [DAEMON Tools] "C:\Program Files\DAEMON

Tools\daemon.exe" -lang 1033
O4 - HKLM\..\Run: [DiskeeperSystray] "C:\Program

Files\Diskeeper Corporation\Diskeeper\DkIcon.exe"
O4 - HKLM\..\Run: [NVIDIA nTune] "C:\Program Files\NVIDIA

Corporation\nTune\nTuneCmd.exe" clear
O4 - HKLM\..\Run: [RCSystem] "C:\Program

Files\Creative\Shared Files\Module Loader\DLLML.exe"

RCSystem * -Startup
O4 - HKLM\..\Run: [AudioDrvEmulator] "C:\Program

Files\Creative\Shared Files\Module Loader\DLLML.exe" -1

AudioDrvEmulator "C:\Program Files\Creative\Shared

Files\Module Loader\Audio Emulator\AudDrvEm.dll"
O4 - HKLM\..\Run: [VolPanel] "C:\Program

Files\Creative\Sound Blaster X-Fi\Volume

Panel\VolPanel.exe" /r
O4 - HKLM\..\Run: [CTHelper] CTHELPER.EXE
O4 - HKLM\..\Run: [CTxfiHlp] CTXFIHLP.EXE
O4 - HKLM\..\Run: [AVG7_CC]

C:\PROGRA~1\Grisoft\AVG7\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE

C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE

C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [Launch LCDMon] "C:\Program

Files\Common Files\Logitech\LCD Manager\lcdmon.exe"
O4 - HKLM\..\Run: [Launch LGDCore] "C:\Program

Files\Common Files\Logitech\G-series

Software\LGDCore.exe" /SHOWHIDE
O4 - HKLM\..\Run: [a-squared] "C:\Program Files\a-squared

Anti-Malware\a2guard.exe"
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
O16 - DPF: {0A5FD7C5-A45C-49FC-ADB5-9952547D5715}

(Creative Software AutoUpdate) -

http://www.creative.com/su/ocx/15026/CTSUEng.cab
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1}

(ActiveScan Installer Class) -

http://acs.pandasoftware.com/activescan/as5free/asinst.ca

b
O16 - DPF: {F6ACF75C-C32C-447B-9BEF-46B766368D29}

(Creative Software AutoUpdate Support Package) -

http://www.creative.com/su/ocx/15028/CTPID.cab
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) -

GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) -

GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT,

s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
O23 - Service: Diskeeper - Diskeeper Corporation -

C:\Program Files\Diskeeper

Corporation\Diskeeper\DkService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) -

Macrovision Corporation - C:\Program Files\Common

Files\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: NBService - Nero AG - C:\Program

Files\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) -

NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone

Labs, LLC - C:\WINDOWS\system32\ZoneLabs\vsmon.exe