error after upgrade from version 5.16.3 to version 5.18.1

Hallo Christian,

I try to guess what happened on your computer.

When Maxima starts it looks for the files maxima-init.mac and
maxima-init.lisp and reads them if they exist. These are user
configuration files and you can put there any valid command e.g. loading
an additional package.

One of the places you can put these files is your home directory, 
which in your case might be "C:\Benutzer und Einstellungen
\Christian" (this is the maxima_tempdir) or "C:\Benutzer und
Einstellungen\Christian\.maxima" (this is the maxima_userdir). 
Please have a look into these directories if there is an init file. 
Such user files remain there in case of deinstallation. 

What happened to the qdraw package I can't tell at the moment.

HTH
Volker van Nek

Am Freitag, den 05.06.2009, 19:48 +0200 schrieb Christian Stengg:
> Hello,
> 
> my name is Christian Stengg, I am a teacher from Austria. I have been 
> using wxmaxima (with Windows XP) with great benefit for my daily work 
> since about two years. Today I wanted to upgrade from version 5.16.3 to 
> version 5.18.1. So I uninstalled the old version using the uninstaller 
> and installed the new version. When I started wxmixa, I got an error 
> message (see below) and could not use maxima any more. The message 
> refers to the qdraw macro package. I remember that I sometime configured 
> that this package is loaded automatically at program start (but I don't 
> remember how I achieved this). I found out that after the uninstall 
> there were still two folders (one for the new and one for the old 
> version) in my programs folder. I uninstalled the new version, deleted 
> these folders and reinstalled the new version, but the problem remained. 
> I uninstalled the new version, deleted the corresponding folder, 
> reinstalled the old version and had the same problem in the old version. 
> The error message occurs in wxmaxima and in command line maxima.
> I don't understand how maxima remembers this problem beyond uninstall 
> and reinstall and I have no idea how I could solve the problem. I would 
> be very grateful if someone could help me because I need maxima for my 
> daily work.
> Thankyou in advance,
> 
> Christian Stengg
> 
> Error message:
> 
> Maxima 5.18.1 http://maxima.sourceforge.net
> Using Lisp GNU Common Lisp (GCL) GCL 2.6.8 (aka GCL)
> Distributed under the GNU Public License. See the file COPYING.
> Dedicated to the memory of William Schelter.
> The function bug_report() provides bug reporting information.
> Could not find `qdraw' using paths in file_search_maxima,file_search_lisp.
> -- an error. To debug this try debugmode(true);
> Maxima encountered a Lisp error:
> Error in PROGN [or a callee]: The tag MACSYMA-QUIT is undefined.
> Automatically continuing.
> To reenable the Lisp debugger set *debugger-hook* to nil.
> Error in MACSYMA-TOP-LEVEL [or a callee]: The tag RETURN-FROM-DEBUGGER 
> is undefined.
> Fast links are on: do (use-fast-links nil) for debugging
> Broken at CONDITIONS::CLCS-UNIVERSAL-ERROR-HANDLER. Type :H for Help.
> 1 (Continue) Maxima top-level
> 2 (Abort) Return to top level.
> dbl:MAXIMA>>
> 
> 
> 
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