Crash exiting DrScheme

["Maurizio Ferreira" <ferreira@selesta.it>]

I experience a program crash every time i close any PlSscheme Windows
application
(HelpDesk, MrEd, DrScheme)
This does not happens closing MzScheme.
I'm using PltScheme 200Alpha1
The previous version (103) worked perfectly (and quicker!!)
To cause the problem it is sufficient to start and then close the
application.
I have this problem on two different machines, both at office than at home.
(I haven't tried on other computers)

My office system:
Pentium III 500 Mhz
128 Mb ram
Windows 98 IIed, Italian version

My home system:
Pentium III 800 Mhz
256 Mb ram
Windows 98 IIed, Italian version

Here is a sample of the crash (caused by DrScheme) on my office machine.

MRED ha provocato un errore di pagina non valida nel
modulo KERNEL32.DLL in 017f:bff9dfff.
Registri:
EAX=013dfe38 CS=017f EIP=bff9dfff EFLGS=00000206
EBX=8174a510 SS=0187 ESP=013dfc88 EBP=013dfe38
ECX=00000187 DS=0187 ESI=8174a510 FS=33bf
EDX=013dfe28 ES=0187 EDI=10a00200 GS=0000
Byte all'indirizzo CS:EIP:
cc a1 e0 9c fc bf 8b 00 66 64 f7 05 1c 00 00 00
Immagine dello stack:
00420000 8174a554 8174dea0 8172b644 000003d4 c16c0270 00000000 00000000
00000000 00000000 00000000 7fc00000 8174a554 00000000 00000000 00000000

Any suggestion ?