I have the same issue and just started yesterday i'm using win7 ultimate 64 what i can say how ever is that the only thing changed was 3 updates 2 from microsoft :
1.Update for Windows 7 for x64-based Systems (KB974431)
Installation date: 10/16/2009 1:02 AM
Installation status: Successful
Update type: Important
This is a reliability update. This update resolves some reliability issues in Windows 7. By applying this update, you can achieve better reliability in various scenarios. After you install this item, you may have to restart your computer.
More information:
http://support.microsoft.com/kb/974431
Help and Support:
http://support.microsoft.com
2. Definition Update for Windows Defender - KB915597 (Definition 1.67.841.0)
Installation date: 10/16/2009 1:02 AM
Installation status: Successful
Update type: Important
Install this update to revise the definition files used to detect spyware and other potentially unwanted software. Once you have installed this item, it cannot be removed.
More information:
http://www.microsoft.com/athome/securit ... rview.mspx
Help and Support:
http://go.microsoft.com/fwlink/?LinkId=52661
and 1 from Nvidia:
NVidia drivers 191.07
one thing i did notice is that the little update checker window telling me about the new release displays fine.
Really hope this info helps you guys somehow to pin point the problem as i can't create torrents to upload at the moment
by the way using v1.1.9 as the 1.2.0rc1 was a mess and i'm an uploader on IPT and was too much trouble with all the bugs hoping rc2 is better cuz i really love Deluge and have converted a few Utorrent and azureus/vuze users to it from the site