I'm getting the following error quite frequently. What additional info can I supply to get it fixed? BTW, I am using FxRuby. [BUG] rb_gc_mark(): unknown data type 0x18(0xf9163c4) non object ruby 1.8.4 (2005-12-24) [i386-mswin32] This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information. -- Posted via http://www.ruby-forum.com/.