The Guide currently doesn't let you use the "Compare" checkboxes on different pages to do side-by-side comparisons.  However, you can get the comparison that you want if you're willing to do a little extra work.  Here's how:

1) Go to the Guide pages that have the routers that you want to compare. For each of the routers that you want (up to four), move the browser pointer over the Read link in the Opinions column. Write down the string that follows "ProdID" in the URL that you see.

2) Type in the following URL

http://www.practicallynetworked.com/pg/router_details.asp?

3) Type in ProdID= followed by a ProdID that you wrote down in Step 1. Type it right after the ?, i.e. no spaces.

4) Type in &ProdID= followed by a ProdID for the other products that you want included in the comparison.

Example: The following URL will give you a page with a detailed comparison for the Linksys BEFSR41, SMC 4 port Barricade, and Netgear RT314 routers:

http://www.practicallynetworked.com/pg/router_details.asp?
ProdID=BEFSR41&ProdID=SMC7004BR&ProdID=RT314

We hope to get the checkboxes working correctly soon, but in the meantime, this method will do the trick!