What's wrong with this?

[therealwesfoster]

RewriteCond %{HTTP_HOST} ^ds-cheats\.DOMAIN\.com [NC]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule (.*?) ds-cheats/$1 [L]

 

It just shows a blank page when it should be showing (like before) a wordpress blog. The code above DOES NOT WORK, but the code below does.. what's the difference?

 

RewriteCond %{HTTP_HOST} ^cheats-for-psp\.DOMAIN\.com [NC]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule (.*?) cheats-for-psp/$1 [L]

 

I'm thinking it has to do with the dash (-).. but not sure. Any ideas?