Home Network MS Outlook Crash

I have 3 computers in my house and I set up a network (mainly to use the printer). 2 of the computers connected fine, and can see each other, file share, and both use the printer.

The third (laptop) doesn't seem to have done anything. I set it up the same way, ran the wizard, gave it a name, same workgroup. In My Network Places, the only thing that comes up is itself and it can't be seen on either of the other two.

I could live with this, except that now every time I open MS Outlook and do a send and receive (or open up an email and then try to click on anything else), the computer crashes.

I can't figure out how to get rid of the network altogether. If I could do this, I'd just start it again on the other two computers and leave out the laptop. I did disconnect the laptop from the Internet, just in case it was somehow accessing the other two and I couldn't see it (I thought maybe MS Outlook was searching the whole network for data when I did a send and receive) but this did nothing. I changed the workgroup name for the laptop too, and this did nothing.

Should I give up and do a system restore on the laptop or am I missing something really silly?

Thanks.

 

Oh also, MS Outlook works fine on the other computer (it's only set up on one of the other two).