My mouse is beat, and I need to replace it. Dell dimension 4550, pentium 4, 2.53 GHz, processor speed 2.46 GHz, 256 RAM, windows XP home, OS 5.1.2600. I believe my current mouse connection is PS 2. Will a laser mouse or ball mouse hooked up through a vacant USB port work for me? As always, thank you to any and all for help or advice. :notworthy: