When you say "quickpassword" do you mean the auto login ability?
If so, I'll outline the steps I have just done to get it to work.
1. Download I-vault, install and activate
2. Set up the privatge storage
3. Created a new WEB RESOURCE card for
http://forums.comodo.com4. Entered the appropriate details for the site (see attached)
5. Saved the completed card
6. Left i-vault open but locked
7. Started IE and went to the Comodo forum site
8. The username and password fields went GREEN, which indicates that I-vault is ready to learn
8a. Ready to learn despite me already telling it the credentials

9. Entered the username and password for the site and logged in
10. Immediately logged out and shut IE
11. Unlocked i-vault, opened the previously created card and clicked the link
12. IE started and opened the site
13. i-vault entered the login details and presented the site as if I had logged in manually
Steps 11-13 are consistent and repeatable. I've since set up 5 other sites using the above method (but not bothering with steps 3-5). I've had no problems with any of these other sites.
I'm still doing a few more tests to refresh my memory on this app. I'll post more as I go.
Let me know how your experience vaires from what I've outlined.
Cheers,
Ewen :-)