Hi FJ,
Thanks for looking into it; perhaps it's just my PC causing this crash.
Here's the logfile in case that sheds some light on the problem (and I've removed my IMEI number

)
Thanks again,
Roger V.
Logdatei MyPhoneExplorer
************************
Programmversion: 1.8.3
nightly vom 21/06/2012 9:16:15 PM
Datum: 25/06/2012
06:10:27.55 Setting Port: 999
06:10:27.55 Setting Baud: 115200
06:10:27.55 Avaiable Ports: COM1=\Device\Serial0;
06:10:27.69 Main Load frmSplash
06:10:27.77 Load frmSplash...
06:10:27.78 Show splash...
06:10:27.84 frmSplash geladen
06:10:28.44 Hauptfenster wird geladen
06:10:28.56 Sidebar fertig geladen
06:10:28.59 UC SMS wird geladen
06:10:28.63 UC Phonebook wird geladen
06:10:28.67 UC Phonebook fertig geladen
06:10:28.67 UC Calls wird geladen
06:10:28.69 UC Organizer wird geladen
06:10:28.75 Organizer initiated
06:10:28.77 Startpage=1
06:10:28.78 UC Filebrowser wird geladen
06:10:28.84 UC Filebrowser fertig geladen
06:10:28.84 UC AppBrowser wird geladen
06:10:28.84 UC Notes wird geladen
06:10:28.86 UC Calls wird geladen
06:10:28.89 Setting Lastuser: samsung GT-S5830 [IMEI]
06:10:28.91 Lade Userdatenbank: samsung GT-S5830 [IMEI]
06:10:28.92 LoadDatafile: pb_metadata.xml(2838 Bytes)
06:10:28.92 LoadDatafile: Phonebook.dat(114007 Bytes)
06:10:29.31 Kontakte geladen
06:10:29.33 LoadDatafile: Calls.dat(12888 Bytes)
06:10:29.47 Anrufe geladen
06:10:29.47 Organizer LoadUser DefaultTimeColWidth=119
06:10:29.49 LoadDatafile: Organizer.dat(32662 Bytes)
06:10:29.56 LoadDatafile: cal_metadata.xml(969 Bytes)
06:10:29.61 Organizer geladen
06:10:29.61 LoadDatafile: Notes.dat(3684 Bytes)
06:10:29.64 Notizen geladen
06:10:29.64 Load SMS Data...
06:10:29.64 LoadDatafile: SMS.dat(42668 Bytes)
06:10:29.64 SMS - Datenbank wird geladen...
06:10:29.70 SMS Laden - Readfile: 0 Split: 0 Parse: 62 HandleMultiSMS: 0 Nachrichten: 220
06:10:29.70 LoadDatafile: SMSArchive.dat(1443 Bytes)
06:10:29.72 SMS Archiv laden - Parse: 16
06:10:29.78 RefreshList (Archive): Addrows=0 Sort=0 MenuUpdate=0 Redraw=16
06:10:29.91 SMS Data Loaded...
06:10:29.91 SMS geladen
06:10:30.42 Hauptfenster fertig geladen
06:10:30.53 Init Android Connection for future connect via WiFi
06:10:30.53 Error in StartBroadcastReceiver: 10048 - Address in use
06:10:31.39 Downloader: RC=6 BytesMax=5 URL=http://www.fjsoft.at/myphoneexplorer/version.txt
06:10:37.52 Error in SendBroadcasts: 10048 - Address in use
06:10:39.52 Try connecting to 192.168.1.2 (cached WifiIP)...
06:10:39.77 Connect to Android OK
06:10:39.77 Settimeout: RT=2000 WT=500
06:10:39.77 bOpened=True
06:10:39.77 [TX]: AT+CGSN
06:10:39.81 [RX]: AT+CGSN
06:10:39.81 [RX]: IMEI
06:10:39.81 [RX]: OK
06:10:39.81 Settimeout: RT=15000 WT=1000
06:10:39.81 [TX]: AT*PIN?
06:10:39.84 [RX]: AT*PIN?
06:10:39.84 [RX]: *PIN: ACCESS OK,10
06:10:39.84 [RX]: OK
06:10:39.84 [TX]: ATI
06:10:39.88 [RX]: ATI
06:10:39.88 [RX]: samsung GT-S5830
06:10:39.88 [RX]: OK
06:10:39.88 [TX]: AT*APPVERSION=1.8.3
06:10:39.91 [RX]: AT*APPVERSION=1.8.3
06:10:39.91 [RX]: 10,1.0.19 beta7
06:10:39.91 [RX]: OK
06:10:39.91 [TX]: AT+CSCS="UTF-8"
06:10:39.94 [RX]: AT+CSCS="UTF-8"
06:10:39.94 [RX]: OK
06:10:39.94 [TX]: AT+CNMI=2,1,0,1
06:10:39.97 [RX]: AT+CNMI=2,1,0,1
06:10:39.97 [RX]: ERROR
06:10:39.97 [TX]: AT*ECAM=1
06:10:40.00 [RX]: AT*ECAM=1
06:10:40.00 [RX]: OK
06:10:40.00 [TX]: AT+CIND=?
06:10:40.03 [RX]: AT+CIND=?
06:10:40.03 [RX]: ERROR
06:10:40.03 [TX]: AT+CBC
06:10:40.06 [RX]: AT+CBC
06:10:40.06 [RX]: +CBC: 0,86
06:10:40.06 [RX]: OK
06:10:40.06 [TX]: AT+CSQ
06:10:40.09 [RX]: AT+CSQ
06:10:40.09 [RX]: +CSQ: 12,99
06:10:40.09 [RX]: OK
06:10:40.09 Alle Verbindungsaktionen beendet
06:10:40.09 [TX]: AT*SOPS
06:10:40.16 [RX]: AT*SOPS
06:10:40.16 [RX]: *SOPS: Westnet,50502,au
06:10:40.16 [RX]: OK
06:10:47.33 [TX]: AT+CPROT=0
06:10:47.47 [RX]: AT+CPROT=0
06:10:47.47 [RX]: CONNECT
06:10:47.47 OBEX Connect: 65535 Bytes Paketgröße, Target: Filebrowser
06:10:47.47 [TX]: 80 00 1A 10 00 FF FF 46 00 13 F9 EC 7B C4 95 3C 11 D2 98 4E 52 54 00 DC 9E 09
06:10:47.66 [RX]: A0 00 1F 10 00 FF FF CB 00 00 00 01 4A 00 13 F9 EC 7B C4 95 3C 11 D2 98 4E 52 54 00 DC 9E 09
06:10:47.66 Connection ID:1
06:10:47.66 Paketgröße: 65535, maximal möglich:65535
06:10:47.66 OBEX SetPath:
06:10:47.66 Settimeout: RT=10000 WT=10000
06:10:47.66 [TX]: 85 00 0D 02 00 CB 00 00 00 01 01 00 03
06:10:47.69 [RX]: A0 00 03
06:10:47.69 OBEX SetPath:
06:10:47.69 [TX]: 85 00 0D 02 00 CB 00 00 00 01 01 00 03
06:10:47.74 [RX]: A0 00 03
06:10:47.74 OBEX GetFolderListing
06:10:47.74 Settimeout: RT=30000 WT=10000
06:10:47.74 [TX]: 83 00 21 CB 00 00 00 01 42 00 19 78 2D 6F 62 65 78 2F 66 6F 6C 64 65 72 2D 6C 69 73 74 69 6E 67 00
06:10:47.88 [RX]: A0 00 DC 49 00 D9 3C 3F 78 6D 6C 20 76 65 72 73 69 6F 6E 3D 22 31 2E 30 22 20 65 6E 63 6F 64 69 6E 67 3D 22 55 54 46 2D 38 22 3F 3E 0D 0A 3C 21 44 4F 43 54 59 50 45 20 66 6F 6C 64 65 72 2D 6C 69 73 74 69 6E 67 20 53 59 53 54 45 4D 20 22 6F 62 65 78 2D 66 6F 6C 64 65 72 2D 6C 69 73 74 69 6E 67 2E 64 74 64 22 3E 0D 0A 3C 66 6F 6C 64 65 72 2D 6C 69 73 74 69 6E 67 20 76 65 72 73 69 6F 6E 3D 22 31 2E 30 22 3E 3C 70 61 72 65 6E 74 2D 66 6F 6C 64 65 72 2F 3E 0D 0A 3C 66 6F 6C 64 65 72 20 6E 61 6D 65 3D 22 70 68 6F 6E 65 22 2F 3E 0D 0A 3C 66 6F 6C 64 65 72 20 6E 61 6D 65 3D 22 73 64 63 61 72 64 22 2F 3E 0D 0A 3C 2F 66 6F 6C 64 65 72 2D 6C 69 73 74 69 6E 67 3E