A little bit of more information may be able to help us help you.
Where you log on to any site, username and password. When you type, it types inside the box. Soon as i downloaded buddypress for some reason the boxes are smaller and the writting doesnt fit in the box.
Could you please provide a screenshot or a link to the page with the problem?
I took some screen shots but not sure how to send them on here.
1- Go to http://www.bustadance.com
2- If you hover your mouse over the log in box it works fine. But when you click log in you will see what i mean. It doesnt type in the box. Soon as i downloaded buddy press the boxes went smaller for some reason.
3- Also, the top left screen there is a 2nd Log in and Register. I want to keep the original one thats on the right as it looks better.
I’m not sure if you managed to fix it since your last post but I don’t see what the problem is.
EDIT:
After looking at it again I think I understand what you mean.
Upon entering the login page entering login details show up weirdly.
I guess the first procedure to take would be to see if it’s the theme somehow causing it or maybe even a plugin.