[Elecraft] PX3 & thumb drive...

[Stephen Shearer]

I have read, tried, and still can't use a "modern" thumb drive (USB)... 
with my PX3 for data transfer.

I have an OLD thumb drive that works in my PX3 firmware 1.48...
I have a Targus.com M-Sys DiskOnKey 128M formatted as FAT32 that works. 
(yes, 128 mega...)
I have a San Disk Ultra Fit FAT32 16G (and other SanDisk) that will not 
give me an "M"...

Is SanDisk the problem?  Why?  Help, is there something I am not doing?

73, steve WB3LGC