OK,please read this thoroughly first!
I go on Yahoo for my mail,or YouTube and when I try to login I get "cycled". I call it cycled because I type in my user-name and password and the screen flashes and takes me back to entering my password. Sometimes my handle is still there but I have to re-enter my password. If I type it in wrong I get an error message so I know when it "cycles" that it's the right password.
The only way to fix it,and even then it's getting problematic,is to go to tools,then internet options, then browsing history delete,click on cookies (only) and delete.
Then I can usually go right to my email or Yahoo answers easily. A trick I've found too is to open my messenger,no problems there and then click on the Yahoo news windos that comes up,bring up (in search) Yahoo answers and I will be logged in automatically!
On YouTube I can sign in,the same way as I mentioned,deleting my cookies first,but then after viewing a few videos,all of a sudden I can't comment or rate or save to favorites,because I need to login! Once again I must delete cookies to log back in!
I've also had very similar problems with Flickr and even using FireFox. I even uninstalled it and reinstalled it,hoping to fix the problems but to no avail.
I had more problems than this when I had Vista,now using Win 7 32 bit. Some of the problems went away,some remained.
This has been going on for 2 months. So take your time with the answers as I will very much appreciate a fix.