Admin menu not working in Opera 12 - Linux

[mammoth65]

This is the same problem as in this thread
http://www.zen-cart.com/showthread.p...12-for-Windows - drop down menus off the page to the left.
I'm running Opera 12.02 and Linux. I tried the zen cart demo on opensourcecms.com in case the problem was my install but the menus were off the page there as well.

I have tried the fix in the above thread and also putting menu.js from 1.5.1 into my 1.5.0 install neither worked

any ideas?
Opera Version information
Version
12.02
Build
1578
Platform
Linux
System
i686, 3.2.0-23-generic

zen cart version 1.5.0 -

[mammoth65]

This morning I purged my admin log and with the fix to the code in http://www.zen-cart.com/showthread.p...12-for-Windows everything is now working fine. Just to check if it was something my browser had cached i logged onto http://www.opensourcecms.com/demo/2/96/Zen+Cart and the problem is still there. I haven't yet tried the menu.js file from 1.5.1 since purging my admin log