Started a week AGO, when I couldn't double click to open icons. I could Right click and select open, or use the start menu. But now it is a BIG deal because I have to download a program for work, but I can't click on the box saying I agree to  the agreement before I do the download. It's a logitech cordless mouse. I've changed the batteries. I've restarted computer. Under device manager, says mouse working properly. I tried system restore. Not sure what to do next. The R click and cursor part work, so I KNOW it's recognized. I had a hard time booting up last week and was hitting alot of the F buttons on top if that helps at all. I'm not real good dealing with bios, registry or safe MODE, so you may have to dumb down your explanations, so I can figure it out. ThanksFirst thing is get a regular mouse.
Meanwhile:
Quote

Applies to Windows 7
    Open the Use the computer without a mouse or keyboard page by clicking the Start button , clicking Control Panel, clicking EASE of Access, clicking Ease of Access Center, and then clicking Use the computer without a mouse or keyboard.
    Select the options that you want to use: Use On-Screen Keyboard.