It sounds simple - copy a file from my PC to my N800 - but I can't make it work and I can't seem to search on the right set of keywords to find out why...

I can see files on my Windows box from the N800's file manager. I can NOT view them remotely. If I drag and drop or cut and paste a file to one of my SD cards, I get the error "Operation failed." If I do the same to the N800's internal memory it appears to start but eventually I get a "connection failed" error. File size does not matter. I'm well within the range of Bluetooth.

It's possible you can't copy a file from another device directly to an SD card, but if so that's pretty lame.

I've noticed that I can't delete files from the file manager, but I can from the command line. I'm running the device in dev mode so I can be root for ssh, etc. I suppose any of these might explain why it's not working.

I'd appreciate any insight... I'm out of ideas. Thanks!