I have a NASLite 2 CCD box and all is well in accessing the box via Telnet, FTP, HTTP and if i browse to it over my network (from my network places). The only problem i have is from one particular computer (i know the faults more than likey on this PC). All computers are on the same workgroup (inc NAS box), except the one with the problem. This is my works laptop and is configured to use an domain instead, i can browse all other shares on other workgrouped PC but when trying the NAS box i get prompted with:

I have tried 'guest' and 'visitor' as password.
Any ideas / help would be greatfully appresheated.
Thanks in advanced Gavin