My son's comp is-MB-ASUS A7N266-VM- NVidia Nforce 220D- 512 MB DDR Ram + ATI Video Card 9600 + Processor Athlon Socket A-2000+.& Network Card. Since some time all the USB ports have stopped working. He is studying in Pune, please suggest a solution !- is it hardware or software? Any good H/W Software guy in Pune ? component level repairers in Pune/Mumbai? Or Asus Service centre in Pune/Mumbai