WordPress and Opera Mobile

I’m completely unable to log into my blog’s admin section via Opera Mobile (my mobile phone’s browser).  I am continuously and repeatedly bounced back to the login page. What’s weirder, is that the site seems to think I’ve logged in, as the “meta” links have all changed, but clicking on the admin link just prompts me for a login.

If anyone reads this, I had this issue in WordPress 2.6 and 2.7, with Opera Mobile 8.65 on a Motorola Q.