GNAT problem

[aussie2010@yahoo.com (Chris)]

I was successfully using GNAT with AdaGIDE on Windows 2000.
I went to compile a small test program today and it would not compile.
I have tried uninstallling, deleting directories, and reinstalling the
programs but fomr some reason I continue to get an error that "da
compiler not installed on this system"??

Here is what I see in AdaGIDE output:

Building...
GNATMAKE 3.15p  (20020523) Copyright 1995-2002 Free Software
Foundation, Inc
  "helloworld.ali" being checked ...
  -> "helloworld.ali" missing.
gcc -c -Ic:/ada/test/ -gnatwu -gnato -IC:\ada\test -g -I-
c:/ada/test/helloworld.adb
gcc.exe: c:/ada/test/helloworld.adb: Ada compiler not installed on
this system
gnatmake: "helloworld.ali" WARNING: ALI or object file not found after
compile
End of compilation
gnatmake: "c:/ada/test/helloworld.adb" compilation error
Done--error detected.

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Here is the program:
with "Text_Io";
PROCEDURE HelloWorld IS
 -- i : Integer;
begin
 Test_Io.Put("Hello World");
END HelloWorld;