>From what I recall reading on the web, that error message upon startup is common after installation of a Newer Card. You'd have to install Newer's software to be able to use the card effectively, as that controls the on/off status of the backside cache. If your getting errors trying to install it, create a "bare bones" profile and try installing from there. Or, boot from an external HD or device and install that way. Enabling Cardbus has nothing to do with the backside cache, as the CPU is on the daughtercard. If anything, it would have damaged your 'Book's ability to read PC cards. That's my opinion, at least ;-) John __________________________________ Do you Yahoo!? Yahoo! Tax Center - File online by April 15th http://taxes.yahoo.com/filing.html