Windows XP is not recognising memory card

Few days back, i have updated my windows OS from Windows 2003 to Windows XP. When i tried to install the other softwares and hardwares using my USB port, am not able to install the packages. Because my memory stick is not detected my Windows XP. When i Windows 2003 back to my PC and tried with USB port. It was working. Does anyone face same kind of issues?
