Inspiron 6000 SD card reader not working.

Hi. I have an Inspiron 6000 with windows xp. My card reader has recently decided not to work but has worked marvelously in the past. When I insert my card, it either comes up that the card is not formatted or just does not autoplay. I get several different error messages depending on it's mood such as: The disk in Drive E is not formatted. Do you want to format it now? (I don't) and Windows Delayed Write Failed. Windows was unable to save all the data for the file E: The data has been lost. This error may be caused by a failure of your computer hardware or network connection. Please try to save this file elsewhere. I do not know where these came from or why the problem started. Like I said, I had no issues with it before and this just started happening. I did not change any hardware settings. Please help!