I have a new laptop (about 6 weeks now) with Windows 7. Just yesterday the mouse is starting to give a little peoblem....I have to click it a few times for it to operate. Or if I click it harder it will work. The touchpad is ok and works as normal. Also the problem is not just when online but with word processor etc; opening a file takes a few clicks or sometimes wont work at all.
I dont have installation disk, it just pligs in and plays!
I assume you're talking about a proper external mouse, not the buttons on the trackpad?
If it is a separate mouse, then how old is it? It's not impossible that it has simply reached the end of its working life and needs replacing.
However, before you get to that point, have a look in Start>Control Panel>Devices & Printers>Device Manager. Click the + sign next to Mice & Other Pointing Devices, then you'll see an entry for your mouse. Does it have a yellow excalamtion mark against it? If so, then it's not working properly.
Right-click on that entry for your mouse. In the menu, click on Properties. Click the Driver tab, then click on the Update Driver button.