File Acess over network share on Ubunto 8.10

I was using Fedora Core 10 and DOSEMU worked fine, but recently I started to use Ubunto 8.10, had e few shares mounted in fstad, and with lRedir to network drives. acess to the files was "ful control" with FC10, with Ubunto I have acess to files with "Nautilus", I can copy delete overwrite, but with DOSEMU it dosen't open files for R/W acess , but for example I can Delete files, the only thing I cant is copy files to the drive or open them for R/W acess..

What might be the problem?