I too have just upgraded to ver 1.5 without problems.
I have had my .INF file corrupted in the past with Ver 1.3 (Load song, get wrong song) and to my knowledge, I did nothing wrong. I trust that now this will not happen again.
DON'T FORGET to back up your SD Card, I'm sure glad that I did.
[This message has been edited by Walt Meyer (edited 07-31-2003).]