This is a known issue and can be addressed by tuning and optimizing your database. Sometimes, simple compacting of the database (menu Database->Manage Database->Compact) can make huge difference.

Please check out this topic for detailed instructions:

[url]http://www.firetongue.com/boards/yabb/YaBB.pl?board=orangecd_general;action=display;num= 1180843834;start=1#1[/url]

I would be very surprised if this does not help. I also recommend checking how much of free space you have on your hard drive. Windows (and OrangeCD) tend to become very slow when there's no extra free space on HDD.

Andrei