Today when I open some websites, specially advertising websites such as Bidvertiser and JuicyAds, my Firefox browser completely displays a blank page. There is the same title in the browser (GIF Image, 1×1 pixels) for all of them. I try opening the sites with many other browsers but nothing changes.

GIF Image, 1x1 pixels error

After some minutes of confusion, I try opening the websites on my desktop and everything works perfectly. I guess there is something wrong with my laptop. Thinking of it for a while, I discover that I installed a new anti-virus software on my laptop last night. The anti-virus software is Kaspersky Anti-virus.

I do some searches and tests and I find the solution for my problem. The problem is solved easily by changing Kaspersky Anti-virus settings. Under Protection, looking for Anti-Spy and disable the Anti-Banner option. That’s it. Now everything is working properly.

Kaspersky Anti-virus

If you are using Kaspersky Internet Security 2010, you can solve the problem with similar steps. If Kaspersky Internet Security 2009 is on your computer, you should disable the Web Traffic option under Anti-Malware protection.