Mouse. How to get it to work on start up everytime?

Please can anyone help ?. My sony 3D Mouse wont work everytime i bootup, sometimes it does. But normaly i have to ctrl-alt-delete shut down the pc and start the pc up again and retry, I've tried moving the mouse about as the pc is starting and sometimes it works sometimes not. any ideas would be apreciated.
P.S. the mouse is USB it came with an adaptor for plugging into the normal mouse socket I've tried it both ways and it doesnt seem to make a diference. On the back of the mouse it has ( 3D optical mouse ) Sony on the front. Please Help I'm pulling my hair out. also it is a pain when restarting then restarting again and sometimes again. aaahhhh.