Yikes!
Apparently this continuous logout issue is a known issue with the security patch that we loaded. So now we are safe from attacks but you get to be annoyed for a bit if dumping your cookies doesnt work.
The security patch is indeed causing a session issue for some users. I want to assure you guys that I am keeping my eye out for a fix for this issue and will let you all know ASAP when we find out about this.
There are multiple users who use this forum software complaining about the issue so Im sure a (another!) patch will be forthcoming soon.
Thanks again for your patience.