The last few months have been some of the worse in my career so far. The hectic project schedule and huge amount of "last minute changes" left me very little time to relax. Hopefully, its all going to change soon.
I am working on Siebel 8.1, and had Internet explorer 7 running, which ran without any issues. After an upgrade to IE 8 (thanks to the IT guys), I found that the Siebel debug mode would no longer open. The IE window would open up and throw a "page not found" error. But the Siebel client would open fine, when started via its own shortcut.
A little experimenting, and I found that inorder for the Siebel 8.1 debug mode to open up in IE, there should be no other instances of IE running. Just kill all other IE instances, and simulating the workflow should be fine.
Not sure if there is another way to fix this.
