Forums stopped working with Drupal 5.5

I upgraded to Drupal 5.5 the first day it came out, but now the forums don't work. Here is the issue/s,

1. I make a new entry in the forum, and it gets submitted. However, the forum doesn't update by showing the new entry. But if I go to "admin" and check my "content" it shows the new entry as a "forum topic." The "forum topic" is logged in the data base, but it won't show up on the forum.

2. I Created a new forum and still have the same issue. The new forum topic entry gets submitted, but it doesn't show up in the forum. But when I check "content in the "admin", the entry appears there appropriately as a "forum topic."

3. I deleted all forums and started over with new forums. Duplicate problem. I've tried different angles to attack this and all forums refuse to update with any new entries. (but they are being logged into the database.)

4. Changed to different default themes, and still the same issue. I tried 3 different default themes -- so I assume this can't be a theme issue.

5. Checked admin logs and everything is normal. No errors are reported.

6. I disable, enabled all users, some users, no users, and still the forums refuse to update.

I'm user "1". I've worked this issue from every angle and I'm at a loss. I've checked all permissions, users, etc. I even "upgraded" a second time to version 5.5 thinking a file might have gotten lost in the mix. No matter what I try, the forums refuse to work correctly. Everything else appears to work correctly since the version 5.5 upgrade except the forums.

Can anybody throw me bone and tell me what I've done wrong? Am I the only one experiencing this issue?
Thanks,
Cliff