Q: could a corrupted toolbar be the problem?
A: Could be a number of things. As the previous answer stated if your harddrive is very full it can struggle to find free space therefore really slows your system down. Virus and trojans (commenly from the internet) can cause systen decrease aswell as defective hardware commponents or connections. Use scandisk and defrag which are found in your start menu > accessories > system tools. I also recommend you search for search and destroy and really good FREE problem checker http://www.safer-networking.org/en/index.html and finally go through your harddrive and add/remove programs and clear unwanted programs and files Hope that helps mobilepcfx