[sylpheed:32513] Default browser not recognized

[Gene Goldenfeld]

I'd been using Opera 9.27 as my default browser and just updated to
9.51.  Since then, link from Sylpheed (2.5.0rc/Win32) are opening IE7
instead of Opera. Opera is set as the default browser within its
preferences, IE is set as not the default (in Tools), and Sylpheed
still shows "(Default browser)" in Common Prefs > Details.  What am
I missing?  Thanks.

Gene Goldenfeld