From the other post, you're on Windows, correct?
A thing to check is whether you're using the 64-bit build of SeaMonkey,
unless you have a reason not to. The limited memory for 32-bit might
cause crashes on some hungrier web pages.
(Help->"About SeaMonkey", check what's in the "User agent" line, if it
says WOW64, it's a 32-bit build.)
--
Nuno Silva
(Please send your reply to the list)