I think you'll find it much quicker to use UNC to navigate to network shared directories and files:
In any Explorer window, click on an empty space in the address bar - the current address is then highlighted. Type or paste in the address of a shared directory (or file) on another network computer, for instance \\DK-pc\Computer Audio\Winamp plugins Then click on the go button (or hit Enter). If you have autosuggest enabled, this address will remain in the dropdown list reached by the little down arrow button at the right of the address bar, and that will always be the quickest way to get there.
The "Network" desktop or Start menu shortcut uses the antiquated "Computer Browser" service to find available network computers, and can be much slower, especially right after the computer is turned on. This service identifies one pc on the network as "Master browser" and it works best when it is on automatic on just that computer (your main computer), and disabled on the others. (but if you end up with no Computer Browser service running on the network, the "Network" shortcut will fail.). But using UNC is always quick and reliable.