start menu doens't working with some themes

[Guest suatkirgoz]

I am using theme changer. I was using msn theme, but it failed

then I don't know why.

Now at home page, start menu isn't working so I only

can reach contacts and emails but no other menus.

How can I change the theme to a standard one without entering the

menus or theme changer ?

Thanks in advance,

Suat