Gettiong rid of overplay smartdns

Is the overplay smartdns easy-install program some kind of malware or virus? I only ask as my smartdns sub ended a couple of days ago and since then I have found no way to effectively remove their dns server address from my internet settings.

I found another topic on this forum on a similar subject, however the solution offered did not work

topic in question: http://forums.majorgeeks.com/showthread.php?t=268958

In addition to this I have tried, to no avail:

changing DNS servers to GoogleDNS
running ipconfig /flushdns then
ipconfig /release followed by
ipconfig/ renew
deleting history, cookies and cache
resetting my modem/router
restarting my computer

It seems no matter what I do when I run ipconfig /all, the DNS server still shows as 176.67.84.19 (the overplay DNS server). As a result I can't access sites like iplayer, ITV player etc despite living in the UK. Is there any way to fix this?

 

Well there is a video on how to change your Ip manually instead of relaying on a program to do it for you.The Video below was made for xp but it might work for windows 7 and vista.

http://www.youtube.com/watch?v=B2yvLXQDgAo

Just a warning i would not do this too often.Just once in a full moon.Your IP might call you up and ask way you are chaning your Ip.