Quick fix for #105

Enclosed is a trivial one-line change that successfully fixes bug #105.

(A more sophisticated fix might be possible by inspecting this one.
At least, I have figured out exactly where the problem manifests itself.)

Here is a "before" screenshot with incorrect font color on logon:
![](https://sites.google.com/site/bl0ckeduserssoftware/before.png)

And here is an "after" (after the fix) screenshot with correct font color:
![](https://sites.google.com/site/bl0ckeduserssoftware/after.png)