How to allow Cookies?

[iaink]

Just after running some programs to deal with spyware I found that, although my machine is running vey fast again, I can't access any Yahoo mail as all the messages are blank and when I tried to set up a hotmail account I was advised that I couldn't as my computer won't allow cookies. Perhaps the two problems are related. So:

1. How do I allow cookies?

2. Any suggestions on how to make Yahoo open properly again?

Thanks in advance. STOP PRESS

Found a post on another forum with the same Yahoo blank messages problem: the solution was advised as deleting all cookies.

I tried it; it worked!

Edited September 11, 2007 by iaink