text: G'day,\n\nA few things come in minds.\n1. Try to download the latest driver/software for your wireless set from the manufacturer's website.  Make sure you uninstall the old driver/software before installing the new one.\nIf the previous suggestion does not work there are 2 possibilities as follows:\n2a. You may have a corrupted Operating System (I assume you are using Windows XP).  You may need to reformat your HDD and reinstall your operating system from scratch.  Please refer to some answers in Yahoo Answers about reformatting HDD and make sure you back up your data files before doing so.  This is gonna be a major work if you want to take this way\n2b. Pls dun get offended, but you might buy a cheap brand wireless set. I helped a few of my clients installing cheap/unknown wireless set that they bought themselves and it gives me alot of problems.  Once I suggest them to exchange with well-known brands wireless set (eg. Microsoft or Logitech), the hardware works perfectly without any problems.  So you may want to try this option first before reformatting HDD.\n\nHope this helps.  Good Luck :)