Hello and welcome to Techspot.
I can`t see anything in your HJT log that would account for your problem.
However, there are some entries that need to be fixed.
Boot into safe mode. See how HERE.
http://www.bleepingcomputer.com/forums/tutorial61.html
Turn off system restore.(XP/ME only) See how HERE.
http://www.bleepingcomputer.com/forums/tutorial56.html
In Windows Explorer, turn on "Show all files and folders, including hidden and system". See how HERE.
http://www.bleepingcomputer.com/forums/tutorial62.html
Run HJT with no other programmes open. Have HJT fix the following, by placing a tick in the little box next to(if there).
O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\system32\dla\tfswshx.dll
O4 - HKLM\..\Run: [HostManager] C:\Program Files\Common Files\AOL\1141362415\ee\AOLSoftware.exe
O4 - HKLM\..\Run: [AOLDialer] C:\Program Files\Common Files\AOL\ACS\AOLDial.exe
O8 - Extra context menu item: &AOL Toolbar search - res://c:\Program Files\Common Files\AolCoach\en_en\player\plugin\ToolBar.dll/SEARCH.HTML
O9 - Extra button: (no name) - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - (no file)
O16 - DPF: {4ED9DDF0-7479-4BBE-9335-5A1EDB1D8A21} (McAfee.com Operating System Class) -
http://download.mcafee.com/molbin/shared/mcinsctl/4,0,0,101/mcinsctl.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) -
http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1150322932484
O16 - DPF: {78AEEDE8-7345-4FB5-A8FE-4BFF16EF25FC} (McAfee Virtual Technician Control Class) -
http://mvt.mcafee.com/mvt/bin/2,4,1,0/mvt.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{031CF728-86DF-43B7-91BF-2C56CC0AA66A}: NameServer = 205.188.146.145
O17 - HKLM\System\CS1\Services\Tcpip\..\{031CF728-86DF-43B7-91BF-2C56CC0AA66A}: NameServer = 205.188.146.145
Only fix the above 017 entries, if they don`t belong to your ISP.
Click on the fix checked button.
Close HJT.
Reboot into normal mode and turn system restore back on.
Regards Howard :wave: :wave: