Thanks again......this is the most responsive, helpful and friendliest forum I've evr joined regardless of subject! Ok, I was a little too cautious with the sd card and just now "snapped" it into place and all is well. I am learning rapidly with trial and error and mostly by searching info here. Last night during my usb transfer fiasco my 810 froze. After a quick search I was able to rectify it by following the poster's advice (remove battery for a while). I did encounter a problem that I fixed by unistalling a few things I had installed, but don't know which one was the prob. I had installed canola2, fm radio, and mplayer all in one swoop and noticed that I totally lost sound on the unit. After uninstalling and rebooting it was ok. I know I should only install one thing at a time, but got carried away with this little jewel. Speaking of canola....if I reinstall canola2 do I have to install any other canolas? I see clean up, tunings, etc? Thanks