bonefont52, did you check to make sure that you wifi is turned on? Not knowing what OS you are using, I would check the BIOS and see if your wifi shows up and is recognized. Also check on [[Toshiba Satellite A75-S226 Troubleshooting|here]] for more info. Try to reinstall the driver for your wifi, it is available [http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/download.jsp?soid=716127|here]. If you do want a new card for whatever reason just check on [http://www.google.com/#q=Toshiba+Satellite+A75-S226+wifi+card&hl=en&prmd=ivns&source=lnms&tbm=shop&ei=VB7QTco9yrO3B6rs8IgO&sa=X&oi=mode_link&ct=mode&cd=5&ved=0CCAQ_AUoBA&bav=on.2,or.r_gc.r_pw.&fp=7b2a1dda4f65c836&biw=1024&bih=630|Google] there are plenty out there. Good Luck