Transfer Queue goes to sleep mode

I have been trying to download about 15 files from a number of my websites. These are backups that I make and then keep on my local machine. When I start the transfer all goes well but then after a couple of hours I notice that the sleep icon displays and I can't get the queue transferring again. Sometimes if I restart the computer they will work for a while but then go into sleep mode.

Here is my system Info:

+- System -----------------------------
Microsoft Windows 7
(Build 7600)

CPU Speed : 2394 MHz
Total Memory : 2047 MB
Free Memory : 1392 MB

+- SmartFTP ---------------------------
Version : 4.0.1140.0
Time Stamp : 2010-10-07 23:36:53
Platform : x86
Id : 400025959
Maintenance : 2011-07-15
Days in use : 11

+- Language ---------------------------
en-US

+- Internet Explorer ------------------
Version : 8.0.7600.16385

+- Winsock ----------------------------
Winsock : 2.2


And here is the log info:

[08:49:57] Resolving host name "gator1194.hostgator.com"
[08:49:57] Connecting to 174.122.2.98 Port: 21
[08:49:58] Connected to gator1194.hostgator.com.
[08:49:58] 220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
[08:49:58] 220-You are user number 7 of 50 allowed.
[08:49:58] 220-Local time is now 00:50. Server port: 21.
[08:49:58] 220 You will be disconnected after 15 minutes of inactivity.
[08:49:58] USER romuba
[08:49:58] 331 User romuba OK. Password required
[08:49:58] PASS (hidden)
[08:49:59] 230-User romuba has group access to: romuba
[08:49:59] 230 OK. Current restricted directory is /
[08:49:59] SYST
[08:49:59] 215 UNIX Type: L8
[08:49:59] Detected Server Type: UNIX
[08:49:59] RTT: 279.406 ms
[08:49:59] FEAT
[08:49:59] 211-Extensions supported:
[08:49:59] EPRT
[08:49:59] IDLE
[08:49:59] MDTM
[08:49:59] SIZE
[08:49:59] REST STREAM
[08:49:59] MLST type*;size*;sizd*;modify*;UNIX.mode*;UNIX.uid*;UNIX.gid*;unique*;
[08:49:59] MLSD
[08:49:59] AUTH TLS
[08:49:59] PBSZ
[08:49:59] PROT
[08:49:59] ESTA
[08:49:59] PASV
[08:49:59] EPSV
[08:49:59] SPSV
[08:49:59] ESTP
[08:49:59] 211 End.
[08:49:59] Detected Server Software: PureFTPd
[08:49:59] PWD
[08:50:00] 257 "/" is your current location
[08:50:30] CWD /public_html
[08:50:30] 250 OK. Current directory is /public_html
[08:50:30] PWD
[08:50:31] 257 "/public_html" is your current location
[08:50:31] NOOP
[08:50:31] 200 Zzz...
[08:51:01] NOOP
[08:51:02] 200 Zzz...
[08:51:32] NOOP
[08:51:32] 200 Zzz...And the ZZZZZZZ just keep going.

At the end of each line in the queue it says Retry at 09:11:32 etc. It then changes for a second and looks like it will carry on transferring but then returns to this message.

I have dug around on this forum but not yet seen any answers.

Double click the file in the transfer queue and post the log from the log window.

error in post.

Thank you very much. Never know n about that niftly little feature. As soon as I looked at the info it showed that the disk was full. Checked my hard drive and found that it was full. Certainly never suspected that as a problem. Now to sort out that problem so that I can carry on with the download.

Thanks again.