Yes. Always set to accept all cookies but to delete them when I close browser.
But this might be a problem with theversionof opera installed by Mageia Linux package management system (urpmi). Because on my Laptop, using (as installed by Opensuse {zypper}) Version
12.16
Build
1860
Platform
Linux
System
x86_64, 3.7.10-1.28-desktop
Browser identification
Opera/9.80 (X11; Linux x86_64) Presto/2.12.388 Version/12.16
I was able to login, & opena new topic composer having only enabled javascript via site preferences.
I used Quick preferences > Edit site preferences to turn them on before I logged in, again when I got to the login screen, And one more time afer I was redirected to the forums, and for this copy of opera, it's working...