WP-Admin White Screen

Like others, I migrated to 3.0 and since upgrading cannot access wp-admin. I have read tons of posts on this issue and have tried everything to know avail. Yes, I disabled plugins. Yes, I went back to the default theme. Yes, I removed every theme except from the default theme from that directory. Yes, I reinstalled WordPress 3.0 (many, many times). I know my wp-config.php is working, because I have no problems accessing my database from the previous WP version and its Dashboard. Yes, I also made sure that I’m using the correct database software versions. I even reinstall WordPress and recreated my database. My username is correct in my database; it has full admin privileges. Yes, I also ran the debugger in my wp-config.php file. That didn’t pick anything up. I also changed the host to the actual IP address for the mysql server. Yes, I checked all my db tables, repaired them, optimized them as well. Those are all fine. I have gone through every piece of advice I’ve read on these forums. Nothing works. I have spent *many* hours trying to resolve this. I have never disliked working with a piece of software than this one. And I am a patient man.