Can't edit anything anymore in SNAV 5.0

[Christie Unitt <cunitt@Catena.com>]

Hi,

I sent this as a bug report to support@cygnus.com. I'm not sure the best
process for reporting this problem.

I successfully installed Source Navigator 5.0 on my WinNT4 machine and was
using it with no problems. I was experimenting with changing the colour
preferences when I managed to save as default a blank value for the
background text of the editor. Since that time I am now unable to open the
editor on any file. I have tried deleting and re-installing the snav. I have
also tried creating new projects. Please help. I have also tried to change
the colour option using the Project Preferences from the Symbols window. Is
there a registry entry or file which I can delete somewhere to get rid of
this problem. I don't mind losing all preference info, I just want to be
able to edit again!

Thanks for your help. The text from the bug report follows.

Cheers,
Christie 

unknown color name ""
    (processing "-background" option)
    invoked from within
"$itk_component(editor) configure  -font $sn_options(def,edit-font)  -fg
$sn_options(def,edit-fg)  -bg $sn_options(def,edit-bg)  -selectforeground
$sn_..."
    (object "::.multiwindow-4.nbook.nbframe.edit.paned.edit.editor" method
"::Editor&::Update_Layout" body line 5)
    invoked from within
"Update_Layout"
    while constructing object
"::.multiwindow-4.nbook.nbframe.edit.paned.edit.editor" in
::Editor&::constructor (body line 102)
    invoked from within
"Editor& $itk_component(editorpane).editor -symbols
$itk_component(symbolcombo) -symbols_filter ${SymbolsFilter} -menu
$itk_component(menu) -toolbar ""..."
    (while creating component "editor" for widget "::.multiwindow-4")
    (object "::.multiwindow-4" method "::itk::Archetype::itk_component" )
    invoked from within
"itk_component add editor {
	    Editor& $itk_component(editorpane).editor -symbols
$itk_component(symbolcombo) -symbols_filter ${SymbolsFilter} -menu ..."
    (object "::.multiwindow-4" method "::MultiWindow&::AddEditor" body line
18)
    invoked from within
"AddEditor $itk_component(notebook) edit"
    while constructing object "::.multiwindow-4" in
::MultiWindow&::constructor (body line 38)
    invoked from within
"MultiWindow& ${name}  -symbolname ${file}  -raise edit"
    (procedure "::Editor&::EditFile" body line 155)
    invoked from within
"Editor&::EditFile ${symbol} ${file} ${line} ${search} ${state}"
    (procedure "sn_edit_file" line 7)
    invoked from within
"sn_edit_file f ${file}"
    (procedure "edit_member" line 60)
    invoked from within
"edit_member ${w}"
    (procedure "edit_symbol" line 3)
    invoked from within
"edit_symbol .multisymbr-1.symbr.list.tree"
    (command bound to event)