I've had Napster yesterday installed for about an hour, then uninstalled it.
Sorry, but without auto-resume, multi-threaded downloading, this Sharing program isn't even worth to look at. I'm sticking to iMesh and CuteMX.
The only reason to use Napster is its huge userbase, but you must be really desperate to use this primitive program.
I had also a slight problem with Napster: When I minimized the window and restored it, I couldn't use the interface. It continued to download the songs I had selected, but I couldn't do anything else, it just beeped when I clicked somewhere in the window. I had to use Task Manager to shut the program down.
Statistics for this hour:
Songs selected: 13
Failed (transfer error): 12
Success: 1