Hi, I have a big problem with a missing driver (I suspect) following a move from Vista64 to W7. I elected to do a clean install, since in my experience, upgrades are anything but straightforward. I saved all my drivers, settings etc on an external drive. Following inatallation of W7 (64), I can no longer use my PCMCIA CF card reader. Device manager shows a mass storage controller under "other" devices, even with the card reader removed. If I uninstall this item and reboot, win7 cannot identify it to install a driver. I have searched almost all day, with no success Has anyone else on this forum seen this symptom? My spec is as follows: Acer Travelmate 5520. CPU: AMD Turion 64 Mobile TK-55 RAM: 4 GB RAM Dual channel DDR2 Motherboard: Acer Travelmate 5520 version 0100 (Socket M2/S1G1) ATI RS690/RS690M Chipset. Southbridge model ATI SB600, revision 00. BIOS: Phoenix Technologies Ltd. V1.14. Video: ATI Radeon X1200 Series (Acer ALI) GPU RS690M. HDD: 250GB Western Digital SATA 7200 16MB Cache. Audio: Realtek HD Audio device Many thanks, Jeremy.