10.6: Dictionary Wikipedia Bug Fixed in 10.6.7
Just a note that the 10.6.7 update fixes this previously mentioned Dictionary bug in which the Wikipedia section had a scrolling issue: When you try to scroll down for more info [of a Wikipedia entry within Dictionary] there will be no scroll bars. Likewise if you enlarge your window you will get only white space. [crarko adds: I tested this, and it works as described. Nice to see noticeable bug fixes in an update.]
Source: http://feeds.macosxhints.com/click.phdo?i=4de840ab45493c6de8dbe709a479772f