One of the hazards of surfing the web are programs that hijack your home page.

Here are a few of the tested programs which will help you regain control of your browser;

Ad-aware Standard Edition is THE award winning, free*, multicomponent detection and removal utility that consistently leads the industry in safety, user satisfaction, support and reliability.
With its ability to comprehensively scan your memory, registry, hard, removable and optical drives for known datamining, aggressive advertising, and tracking components, Ad-aware will provide the user with the confidence to surf the Internet knowing that their privacy will remain intact. Let Ad-aware protect your privacy.
++ There is more on the web site.

Spyware, Browser Hijackings and other Antisocial Tricks
Hijackware" has become very common nowadays. Malicious web sites will try to reset your home page and then disable your ability to change things back, add themselves to your list of favorites, even hijack your browser's search engine options and download little programmes that trigger pop-up advertisements.

Spybot - Search & Destroy
Spybot - Search & Destroy can detect and remove spyware of different kinds from your computer. Spyware is a relatively new kind of threat that common anti-virus applications do not yet cover. If you see new toolbars in your Internet Explorer that you didn't intentionally install, if your browser crashes, or if your browser start page has changed without your knowing, you most probably have spyware. But even if you don't see anything, you may be infected, because more and more spyware is emerging that is silently tracking your surfing behaviour to create a marketing profile of you that will be sold to advertisement companies. Spybot-S&D is free, so there's no harm in trying to see if something snooped into your computer, too :)

Browser Parasite List
Below is a list of all browser parasites currently in our database. Click on any parasite name to see the full information we have available. Please note that filenames, registry keys and paths sometimes change faster than we can keep up, so your system may vary from the information we present here.

"Homepage Hijacking" a form of spyware.
You have been surfing all over the web for hours and hours, you close your browser and take a break. You come back to your PC a few hours later and fire up your browser.
Wait a minute! That isn't my home page! What happened to my home page? You realize that your normal home page is no longer there and some new page is there and pop-up ads start appearing from out of no where, even when your browser is closed.

HijackThis 1.97.6
HijackThis, a general homepage hijackers detector and remover. Initially based on the article Hijacked!, but expanded with almost a dozen other checks against hijacker tricks. It is continually updated to detect and remove new hijacks. It does not target specific programs/URLs, just the methods used by hijackers to force you onto their sites. As a result, false positives are imminent and unless you are sure what you're doing, you should always consult with knowledgable folks (e.g. the forums) before deleting anything.

SpywareGuard 2.2
SpywareGuard is compatible with: Windows 98, ME, 2000, XP
SpywareGuard provides a real-time protection solution against spyware that is a great addition to SpywareBlaster's protection method.
An anti-virus program scans files before you open them and prevents execution if a virus is detected - SpywareGuard does the same thing, but for spyware!
And you can easily have an anti-virus program running alongside SpywareGuard.
SpywareGuard now also features Download Protection and Browser Hijacking Protection!

StartPage Guard 2.2
StartPage Guard (SPG) protects your PC from cyberscam, by detecting and preventing any unauthorized changes to your internet browsers Start and Search pages. It is also capable of removing automatically most  of known invaders. Malicious programs (viruses, trojans, backdoors, etc.) sometime change the StartPage to gain the ground.

The Skinny on Spyware
Besides viruses, Trojans & worms, we have to deal with spyware! 
If you never download free programs from the Internet you may think you are safe from spyware, but ‘ain’t necessarily so’. Some websites can plant it on your pc without you even knowing it.  Spyware will ‘phone home’ & tell the originator just what you’ve been doing and where you have been surfing. Very naughty! One of the most popular download helpers, Gator, is known spyware. Gator can also  bring you another little surprise, Top Text.

See My Spyware Article from ABC here;

Mike ~ one of the Moderators
It is a good day if I learned something new.
Editor MikesWhatsNews