You were right. Sorry for the misinformation. I changed too many things at once. It turns out that when I build the pcmcia sotware with PnP BIOS resource checking to yes then eveything works. If it is set to no then it does not work. With it set to no then I need to set the following: irq_list=11,15 and exclude port 0x230-0x23f With these selected it uses 0xa30. This is what it picks with PnP BIOS set to yes as well. Using these makes the following work: Sony VAIO 505TR laptop. You can add these to the PCMCIA_HOW_TO if you like. I am still trying to get it to install with it though. You told me how to set irq_list. How do I exclude a port range during the install? Thanks, Bruce Forsberg BTW, if you work for VALINUX congrats on the IPO.