I use dashes in my page permalinks and they work fine. I haven’t tried underscores though.
Regards
What do your rewrite rules in htaccess look like? I am using the wordpress generated ones and anything with a dash or underscore don’t work. (such as 2005-09). Here is the one of interest.
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RewriteRule ^(galleries)(/[0-9]+)?/?$ /wp/index.php?pagename=$1&page=$2 [QSA,L]
Here are my page rules:
RewriteRule ^(contact-me)(/[0-9]+)?/?$ /index.php?pagename=$1&page=$2 [QSA,L]
RewriteRule ^(weighted-words)(/[0-9]+)?/?$ /index.php?pagename=$1&page=$2 [QSA,L]
RewriteRule ^(about)(/[0-9]+)?/?$ /index.php?pagename=$1&page=$2 [QSA,L]
RewriteRule ^(archives)(/[0-9]+)?/?$ /index.php?pagename=$1&page=$2 [QSA,L]
RewriteRule ^(plugins)(/[0-9]+)?/?$ /index.php?pagename=$1&page=$2 [QSA,L]
Regards
