yihkun..... Your log reveals several things .......
You do not appear to be using the most recent version of IE ..........You should update it .
Also you appear top be using a accelerator program ......... I would be very surprised to hear it actually increswed your D/L speed ...I would be uninstalling it .......
Now then in your hijackthis log ....... Mark for removal the following :
O4 - HKLM\..\Run: [DeadAIM] rundll32.exe "C:\Program Files\AIM\\DeadAIM.ocm",ExportedCheckODLs ...... Dont think you really need this ....
O9 - Extra 'Tools' menuitem: &Internet Download Accelerator - {9819CC0E-9669-4D01-9CD7-2C66DA43AC6C} - C:\Program Files\IDA\ida.exe
O9 - Extra button: PartyPoker.com - {B7FE5D70-9AA2-40F1-9C6B-12A255F085E1} - C:\Program Files\PartyGaming\PartyPoker\RunApp.exe (file missing)
O9 - Extra 'Tools' menuitem: PartyPoker.com - {B7FE5D70-9AA2-40F1-9C6B-12A255F085E1} - C:\Program Files\PartyGaming\PartyPoker\RunApp.exe (file missing) ..... for some reason this entry is in here twice....... mark both to remove .
Ok , when you have marked them click fix marked .
let us know how things are .
dl65