[Light Speed]

Here's my errror:

Warning: Smarty error: problem writing temporary file '/***PathToXCart***/templates_c/%%189/%%1894910960/3f3747f58d9c1' in /***PathToXCart***/Smarty-2.5.0/Smarty.class.php on line 1042

Warning: touch(): Utime failed: Operation not permitted in /***PathToXCart***/Smarty-2.5.0/Smarty.class.php on line 1575

Any ideas? Is this just a permissions issue?