When I clik on hotmail, and then a sign in page is next,  my sign in page is always blank.  I have tried it on two other computers today, and it will let me sign in on all but my compter.  I have never had this problem before.  Don't even know where to start looking for the problem.  Obviously the problem must be in  my computer.

Hi Vincent Marchese.  I’ve moved your post to the proper forum, Accounts and Passwords. 
 
Have you tried to optimize your browser?  A cluttered browser may have caused this sign in difficulty.  Check out this link for the steps on how you can do this:
 
http://windowslivehelp.com/solutions/accounts/archive/2009/03/03/How-to-optimize-Internet-Explorer-browser.aspx
 
If the issue persists, post the following info so I can investigate:
 
1. What’s your Hotmail account? 
2. Do you encounter an error message?  If you do, give the exact error message.
3. Does this issue occur with other Hotmail accounts that are being accessed on your computer?
4. When did the problem first occur?