Please Help......SLOW PC

I really need some help with my Dell Laptop. I bought it in August 2008, and it has Windows Vista. I tried loading my digital camera software on my computer, but it would not let me. I am assuming my camera is not compatible with Vista, but I'm not that computer savvy so I'm not sure. Anyway, ever since I did that, my computer is acting funny. I can surf the internet with no problems. However, if I try to open a new tab or if I click on a link that opens in a new window, it takes 1-2 minutes for it to load. What can I do? I was told that CCleaner would fix this problem by repairing my registry, but I have ran several scans, and I am still having the same problem. Please help!!

You should probably follow these instructions first:

http://forum.piriform.com/index.php?showtopic=20120