Backup and network drive

ok here we go,before i go for a refund, who can help?

mybook 1tb,1 laptop and 1 pc,both vista,ran 2 backups both fine,2 weeks running,fine.now both pcs cannot reconnect network drives,z,y,x,w, have to delete and remap every  start up and backup cannot find location,both machines.

restarted drive,still no good and this is the second time this has happened, first time i resored back to factory settings

cant be doing with this!! takes ages to do initial backup

thanks,Bill

Are you by chance implying that WD software is causing re-mapping of network drives after reboot?

Does it still happen if you uninstall the software?  Note, uninstalling may kill your backup jobs.