4GB large file -- deleted on completion, and restarts

==================== symptoms ========================

deletes 4.2 G B file upon completion of download and
restarts transfer (or, restarts transfer and then deletes)

flaky problems with session resets every 30 MB or so (server independent)

attached is the log of explicitly incorrect behavior on the large file.


====================== misc info =====================

tried both following OS
1) windows xp 64 - amd64/iac - amd opteron 246, NTFS
2) windows xp, intel p4-M @ 1700MHz, NTFS

same problem on both ---

Linksys router RV082 with NAT, single WAN, 6000KB/sec DSL.


====================== machine cfg ====================

+- System -----------------------------

Microsoft Windows XP Professional
Service Pack 1 (Build 2600)

CPU Speed : 1690 MHz
Total Memory : 1047532 KB
Free Memory : 440440 KB

+- SmartFTP ---------------------------

Version : 1.0.981.37
Time Stamp : 2004-03-15 11:56:43

+- Application DLL --------------------

controls.dll : 1.6.981.37
ftpapi.dll : 2.0.981.37
language.dll : 1.0.981.37
reseng.dll : 1.3.981.37
smarthook.dll : 1.0.2.1

+- System DLL -------------------------

shell32.dll : 6.00.2800.1348 (xpsp2.040109-1800)
shlwapi.dll : 6.00.2800.1400
comctl32.dll : 6.0 (xpsp2.040109-1800)
riched20.dll : 5.30.23.1211
schannel.dll : 5.1.2600.1347 (xpsp2.040109-1800)

+- Internet Explorer ------------------

Version : 6.0.2800.1106

+- Winsock ----------------------------

Winsock : 2.2
====================== session log ===========================
*** Welcome to the limestone.uoregon.edu ftp server! ***

You are user 71 out of a maximum of 200 authorized anonymous logins.
The current time here is Sun Jun 6 03:55:37 2004.
If you experience any problems here, contact : joelja@darkwing.uoregon.edu


230 Anonymous login ok, restrictions apply.
SYST
215 UNIX Type: L8
FEAT
211-Features:
MDTM
REST STREAM
SIZE
211 End
PWD
257 "/" is current directory.
CWD /fedora/2/x86_64/iso
250 CWD command successful.
PWD
257 "/fedora/2/x86_64/iso" is current directory.
TYPE I
200 Type set to I
PASV
227 Entering Passive Mode (128,223,162,20,188,243).
Opening data connection IP: 128,223,162,20,188,243 PORT: 48371.
REST 4260670720
350 Restarting at 2147483647. Send STORE or RETRIEVE to initiate transfer
RETR FC2-x86_64-DVD.iso
150 Opening BINARY mode data connection for FC2-x86_64-DVD.iso (2125613057 bytes)
Connection closed. Server timeout.
ABOR
426 Transfer aborted. Data connection closed.
226 Abort successful
Resolving host name limestone.uoregon.edu...
Connecting to (limestone.uoregon.edu) -> IP: 128.223.162.20 PORT: 21
Connected to (limestone.uoregon.edu) -> Time = 40ms
Socket connected waiting for login sequence.
220 FTP Server ready.
USER anonymous
331 Anonymous login ok, send your complete email address as your password.
PASS (hidden)
230-
*** Welcome to the limestone.uoregon.edu ftp server! ***

You are user 72 out of a maximum of 200 authorized anonymous logins.
The current time here is Sun Jun 6 03:58:55 2004.
If you experience any problems here, contact : joelja@darkwing.uoregon.edu


230 Anonymous login ok, restrictions apply.
SYST
215 UNIX Type: L8
FEAT
211-Features:
MDTM
REST STREAM
SIZE
211 End
PWD
257 "/" is current directory.
CWD /fedora/2/x86_64/iso
250 CWD command successful.
PWD
257 "/fedora/2/x86_64/iso" is current directory.
TYPE I
200 Type set to I
PASV
227 Entering Passive Mode (128,223,162,20,189,2).
Opening data connection IP: 128,223,162,20,189,2 PORT: 48386.
RETR FC2-x86_64-DVD.iso
150 Opening BINARY mode data connection for FC2-x86_64-DVD.iso (4273096704 bytes)
Command aborted by user.
Resolving host name limestone.uoregon.edu...
Connecting to (limestone.uoregon.edu) -> IP: 128.223.162.20 PORT: 21
Connected to (limestone.uoregon.edu) -> Time = 40ms
Socket connected waiting for login sequence.
220 FTP Server ready.
USER anonymous
331 Anonymous login ok, send your complete email address as your password.
PASS (hidden)
230-
*** Welcome to the limestone.uoregon.edu ftp server! ***

You are user 72 out of a maximum of 200 authorized anonymous logins.
The current time here is Sun Jun 6 03:59:12 2004.
If you experience any problems here, contact : joelja@darkwing.uoregon.edu


230 Anonymous login ok, restrictions apply.
SYST
215 UNIX Type: L8
FEAT
211-Features:
MDTM
REST STREAM
SIZE
211 End
PWD
257 "/" is current directory.
CWD /fedora/2/x86_64/iso
250 CWD command successful.
PWD
257 "/fedora/2/x86_64/iso" is current directory.
TYPE I
200 Type set to I
PASV
227 Entering Passive Mode (128,223,162,20,189,4).
Opening data connection IP: 128,223,162,20,189,4 PORT: 48388.
RETR FC2-x86_64-DVD.iso
150 Opening BINARY mode data connection for FC2-x86_64-DVD.iso (4273096704 bytes)
Command aborted by user.