iMac cannot see Win PC's anymore

[aftertouch]

I have 2 Macs (OS X 10.5.8) and 3 Win XP PC's on my home network. Up until recently the Macs had no problem seeing and sharing files on the Win PC's. Now all of a sudden the Macs cannot see the PC's anymore.

I've rebooted all of the computers and the router. I can ping the PC's from the Macs. I've tried turning off the McAfee firewall (the Win firewall is already off). I've tried rerunning the Win Network Setup Wizard. No luck so far.

 

[aftertouch]

Due to the underwhelming response to this post, I'll try asking a slightly different question. I have done some research on this problem and have found several threads that recommend using the Directory Access utility to specify the Windows workgroup. OS X 10.5.8 does not have this utility, but instead has Directory Assist which appears to be similar. However, I have not been able to figure out how to specify a workgroup using Directory Assist. Anybody know how?

 

[C. Alan]

This sounds more like an OSX problem and a Imac Hardware related problem. You may get more luck having this question answered in the OSX section of the forum.