Workgroup Problem

Hello Hello
I am having a bit of a problem and was wondering if anyone out there had any advice for me. In one of our outlining offices we have a small 3 computer windows 2000 workgroup. They were complaining that some of the users couldn't print. One of the windows 2000 pc's is set up as the print share that the other two print to. I looked at the print share and made sure that everyone has access to it and even added the other users profiles in there and gave them access to this print share. I went into net share and noticed that ICP$ was not there so I went to all the computers and did the ol net share ICP$ and made sure all of em were sharing and could see each other. Bam! They were working fine they could all print and see eachother in network places and all was good. I then get a call today and they can't print again. I had one of the users go to the dos prompt and type net share and sure enough ICP$ was no longer there. I also had them go into network places and try to directly connect to the printer pc...the username and password box came up but when they typed in the info of the other user the said they still couldn't connect to the pc. I guess basically what I need is for all of them to be able to print to this pc and not have to log into the other computer and keep the net share in place. Does anyone have any idea's I can try to kick around when I go out there tomorrow??