Blank window after login

[uriah]

Hello,

I am receiving one of the infamous Blank windows. I receive this after I login, it authenticates and attempts to login like normal however, it just displays a blank page at this location: http:///?_task=mail

I have no errors in my Apache log, or RoundCube's log/errors file. I turned on logging to console however that only returns the following information over and over:

[12-Jun-2007 03:44:40 -0500]: * CAPABILITY IMAP4REV1 LITERAL+ IDLE NAMESPACE MAILBOX-REFERRALS BINARY UNSELECT SCAN SORT THREAD=REFERENCES THREAD=ORDEREDSUBJECT MULTIAPPEND SASL-IR LOGIN-REFERRALS AUTH=LOGIN
cp01 OK CAPABILITY completed
Tried PLAIN: Resource id #31

This was working a week ago, and has now completely stopped working. The database login and password are all correct, as are my account details (I have had to use Thunderbird to check my mail of late).

I upgraded to roundcubemail-0.1-rc1.1 as soon as it came out, and have been running this since then with no problems. This identical setup is running on another server of mine, and it works flawlessly.

Does anybody have any ideas? Because I have no idea where I can go from here.