Windows 7: Why am I "loosing" cookies for some websites?

I am really lost here. Running Win 7 Ultimate x64 (legitamate copy) with all of the latest updates/patches.

For some reason, I am "loosing" cookies on some of the websites that I visit. They have "keep me logged in", and they are checkmarked. Sometimes I am there for 15 minutes before I need to re-login, and sometimes for 4-5 hours. But sooner or later, I have to manually re-login.

The only way this gets "fixed" if I reset all cookies and this seems to fix this for day or two and then back to same issue. The strange thing it is not happening on all websites, but on like 20% of 'em.

I really have no ideas what to do and I must stick with IE8 for compatiblity reasons with some of the JAVA applets that I am running.

Any advice?

What websites are giving you trouble?

I assume you are using Internet Explorer. Try using another browser, like Firefox or Chrome.

hi....might be a site specific issue rather than your browser being at fault.

You're certain you're not running a program that cleans cookies out correct? The first time I ran CCleaner, I forgot to save my cookies and spent an extra hour visiting all of my sites to log back in.

Otherwise, switch to Firefox

Another possible culprit could be your Anti-Virus program, depending what one you are running.

Some, such as Norton for example, clean cookies it deems as tracking or potentially unwanted, daily. Its possible this could be whats happening.

Tools>internet options>privacy>advanced. What is you cookie setting. Do you lose your cookies, after boot?

Tools>internet options>security. Are these sites listed as trusted? If not try to do so.

Tools>internet options>privacy>advanced. What is you cookie setting. Do you lose your cookies, after boot?

I have both of the boxes unchecked and first & thrid party accepting.

Tools>internet options>security. Are these sites listed as trusted? If not try to do so.

They are not listed in trusted.

Hmmm... I am running Kaspersky Anti-Virus 2010 v9.0.0.736.

Any guess what, I tried to reply to your message here, and it prompted me to login to this website, eventhough I had earlier today logged in and told it to "remember me" by checking the box on.

Try disabling Kaspersky.

It's an idea, but I really dont want to be surfing the internet without protection...