Can't see anything in v4.3

[GoogleCodeExporter]

What steps will reproduce the problem?
1.Opening the program in windows 7
2.
3.

What is the expected output? What do you see instead?
Whenever I try to type anything into the command or interactions area, 
nothing happens. The program recognizes that things are being input into 
the program, but nothing appears in either area.

What version of the product are you using? On what operating system?
This problem existed in versions 4.3 and 4.2.1 when opened using windows 7

Please provide any additional information below.
The program has run correctly before several times, then every time after 
has failed to work correctly

Original issue reported on code.google.com by k09t...@kzoo.edu on 14 Apr 2010 at 12:33

[GoogleCodeExporter]

So it turns out that the font size was simply set to zero when I opened the 
program, 
which explains why I couldn't see anything. 

Original comment by k09t...@kzoo.edu on 14 Apr 2010 at 12:38

[GoogleCodeExporter]

This is a somewhat strange problem as we shouldn't allow a zero value for 
fontsize. 
Can you elaborate a bit about the situation that caused this?  Was this the 
first
time you were running JES?  Did you manually edit the JESConfig.txt file in 
your home
directory?  If we can track down what caused this it would be a relatively easy 
fix.

Original comment by bjdorn@gmail.com on 14 Apr 2010 at 7:21

[GoogleCodeExporter]

I had the same problem and I'm on Windows Vista. The situation that caused it 
for me was I running two different Jes windows and my computer crashed. When I 
restarted it the font was set to zero. I wouldn't have known what to do except 
for this site. 

Thanks.

Original comment by nsheele...@gmail.com on 9 Mar 2011 at 11:07

[GoogleCodeExporter]

THANK YOU SOOOO MUCH for posting a solution!!!!! I have been working for days 
trying to figure this same problem on my computer and it was driving me crazy.

Original comment by Jediknig...@gmail.com on 22 Jul 2011 at 12:13