Re: Battlelog issues.
try reinstall web browser trythis method:
The current web plugin is version battlelog-web-plugins-1.138.0-retail-prod Make sure you have that somewhere in your download folder.
Next, completely uninstall it using the Control Panel - Programs & Features/Add Remove Programs. Once uninstalled, clear your browser cache, cookies and temp files. Now you're read to reinstall in a clean state. Find the browser plugin (most likely in your Downloads folder) and run the program. It will install the plugin and you should be set!.
Post back if you still experience issues.
p.s which windows you are using 32 bits or 64? win 7?