It's interesting to notice that although this little trick was initially designed to get a HP notebook to read the card, it works perfectly well with other brands as well and the proof is that I've used it ona Vaio. This is because there are many units out there incorporating a Texas Instruments card reader. The first step of this operation is to download the driver. Here's the link to Softpedia's drivers database or you can go directly to HP . The second thing you need to do is to remove the existing Texas Instrument driver using Windows add/remove. The OS might want you to reboot, but don't click yes. Now it's time to run the installer previously downloaded. You now have to go to the location (C:SWSetupSP33416BaseprogramfilesTexas Instruments IncTIPCI) with all the extracted files and to right click on the file tifm21.inf; choose install. Before going any further, you might want to try and insert the 4GB card into the reader; sometimes it works jus...