Web search impossible in Firefox 3, Internet Explorer 7

[Astalavista]

Good evening.

I have a small problem embarrassing on my desktop, it is impossible to do a search on Google. If it sometimes lead over the links of sites are redirected to random sites and it takes considerable time. I tried two different browsers (Firefox and Internet Explorer) and nothing done. This does not finish the connection because I've tested it with another computer and it works perfectly. Pings launched from a command prompt to addresses work. The virus scanner did nothing.

Thank you for your help.

Setup:
XP SP2
Browser: Firefox 3, Internet Explorer 7

[JIII]

To clean your files hosts
http://www.symantec.com/en/in/norton...movaltools.jsp - uses the advanced feature of Spybot, for example, to add entries, after having cleaned.

[Astalavista]

I analyzed ad-aware and nothing. The pc seems clean.

I'll try to clean the hosts file.