HTML or PHP?

I have a problem that seems like it should be a snap to fix, but leaves me feeling frustrated to no end... I have a table (HTML) -- 2 Columns. In the right-hand column I store a URL (ie. http://someonesdomainname.com/path/anotherpath/file.html) The problem is -- when I pull the URL in -- it *pushes* my columns around and expands my table beyond the page -- I have my table hard set at 600 pixels (not 100%) -- How can I force the URL (or any text for that matter that doesn't have spaces in it) -- to *wrap*?? Can I do this with HTML (I hope) or do I need to write some PHP code to force break the string into workable sections? Thanks. jason@thinkingman.org