Go to Start>Control Panel>Add/Remove and see if the give4free plugin is listed in the programs there.
If give4free is listed remove it; being careful not to remove any of the other programs on the list.
Please provide a log so that we can see what is going on with the system.
Open SpyBot, check for and get any updates available, close all browsers, check for problems and fix everything found. Then on the toolbar menu select mode and switch to advanced mode, on the left lower down select tools, and view report, ensure all the options are selected near the bottom except (Spybot version 1.4)
uncheck[ ] Include a list of services in report.
Uncheck[ ] Include uninstall list in report.
Now select (near the top) view report.
Press export in the save in box choose a place such as your my documents folder, then in your next post near the bottom select the "browse" button; navigate to and attach that report.
If you have any problems attaching the Spybot log please go ahead and copy paste the log.
If you are running an older version of Spybot-S&D.