Pub qui s'affichent tout seuls

Bonjour,
voila j'ai IE depuis quelques jours des pub genre casino telephone etc... s'affichent sans arrêt
j'ai fait un rapport :
Search Navipromo version 3.5.0 began on 08/03/2008 at 10:58:30,93

!!! Warning, this report may include legitimate files/programs !!!
!!! Post this report on the forum you are being helped !!!
!!! Don't continue with removal unless instructed by an authorized helper !!!
Fix running from C:\Program Files\navilog1
Updated on 04.03.2008 at 17h00 by IL-MAFIOSO

Microsoft Windows Vista 6.0.6000
Version Internet Explorer : 7.0.6000.16609
Filesystem type : NTFS

Done in normal mode

*** Searching for installed Software ***

*** Search folders in C:\Windows ***

*** Search folders in C:\Program Files ***

C:\Program Files\InternetGameBox found !

*** Search folders in C:\ProgramData ***

*** Search folders in C:\ProgramData\Microsoft\Windows\Start Menu\Programs ***

...\InternetGameBox found !

*** Search folders in c:\users\teng-jun\appdata\roaming\microsoft\windows\start menu\programs ***

*** Search folders in C:\Users\Teng-Jun\AppData\Local\virtualstore\Program Files ***

*** Search folders in C:\Users\Teng-Jun\AppData\Roaming ***

*** Search with Catchme-rootkit/stealth malware detector by gmer ***
for more info : http://www.gmer.net

SVP aidez moi si vous pouvez