WB3.9 backdrop problem

[Nigel]

I installed wb3.9 properly, and all works fine,
except for setting the workbench as backdrop.
Setting the wb as backdrop works only til the next
restart.

I had some problems before with saving prefs, but
I solved that by setting the 'write'-flag of all
systemfiles.

Snapshot the Workbenchscreen won't help either.
The backdrop problem still remains.

Does anyone have the same problem, e.g. a solution.

[Nigel]

Maybe you think of WBpattern.

But I meant that the WB is a window on the Workbenchscreen
after a fresh installation.
You can set that window as a backdrop by checkmark the "backdrop" in Workbenchmenu.

Beside, I solved the problem myself by installing 'patchwb'.