Hi, I use Ruby 1.9.2.180 and it crashes several time with same error message from event viewer. It comes and goes without any pattern and I have no specific re-produced steps. It seems to be related to "mshtml.dll". I checked event viewer, and it say: Faulting application ruby.exe, version 1.9.2.180, faulting module mshtml.dll, version 8.0.6001.18702, fault address 0x0025ee8e. I use watir to do web UI testing. I googled "mshtml.dll" and it is used to handle IE layout. I try to use watir 1.8.0, 1.7.1, 1.6.7 and ruby.exe still crashes with the same error message. any idea? Here is the Ruby gems I installed: activesupport (2.3.9) builder (3.0.0) commonwatir (1.6.7) firewatir (1.6.7) hoe (2.9.1) json_pure (1.5.1) minitest (2.0.2, 1.6.0) nokogiri (1.4.3.1 x86-mingw32) racc (1.4.6) rake (0.8.7) rake-compiler (0.7.6) rdoc (2.5.8) rexical (1.0.5) rubyforge (2.0.4) s4t-utils (1.0.4) test-unit (2.2.0) user-choices (1.1.6.1) watir (1.6.7) win32-api (1.4.8) win32-process (0.6.5) windows-api (0.4.0) windows-pr (1.1.3) xml-simple (1.0.14) Regards, Paservan -- Posted via http://www.ruby-forum.com/.