Mouse problem

I am using Gutsy and have suddenly developed a mouse problem.
I use a notebook that rarely actually leaves my study these days. The mouse worked fine until a few days ago, when I went mobile, without the mouse.
When I boot-up the mouse does not work, until I remove and then replace it in the USB slot. I thought it might be a loose connection but it does the same thing in all 3 of my USB slots and I have no problems with other USB items. I thought about reinstalling the drivers but I don't have the disc any longer. I went on to the company website and downloaded the drivers - this being the resulting output - Could not open "3DMouse2Erar-1.rar".