I can get data from MySQL, but Ferret doesn't plot for me....

The LAS can access RDB data ok, but when I use following condition:

- select view = lon-lat map

- select output = profile location plot

- lon = 106E - 110E

- lat = 0 - 13N

- select time range = 28-Sep-2004 - 28-Sep-2004

Following message occurred:

Illegal Limits

Sorry ...

    There are no data available in the range -6.3264E+10: to :
    The data begin at 0.5:2.5 and continue to :

Please try again with a time that lies within this range.

But if I choose select output = text, it will return text data for me:

Output by Live Access Server
Mon Oct  4 17:29:35 2004

  Dataset title: asia_prof_ctd.cdp
  missing value: -99.9
Longitude range: 106.00E to 110.00E
 Latitude range: 0.00N to 13.00N
    Depth range:  to 
     Time range: 28-Sep-2004 to 28-Sep-2004
    Time origin: 28-Sep-2004

prof_ID,      lon,     lat,   depth, hours since,Temperature (tt)
      1, 108.0800, 12.6800,       0,      0.0000,            22
      2, 109.2000, 12.2500,       0,      0.0000,          26.4
      3, 108.1000, 10.9300,       0,      0.0000,            26
      4, 106.6700, 10.8200,       0,      0.0000,          26.3
      5, 106.5800,  8.7000,       0,      0.0000,          26.2
      6, 106.2500,  3.2000,       0,      0.0000,          25.7
      7, 108.3800,  3.9500,       0,      0.0000,         -99.9
      8, 109.6700,  1.0800,       0,      0.0000,         -99.9

Another question is, when I use following time-range condition:
 
- select view = lon-lat map
- select output = profile location plot
- lon = 106E - 110E
- lat = 0 - 13N
- select time range = 27-Sep-2004 23:00:00 - 28-Sep-2004
 
The output gif file is attached, why can't I see anything on it?? 
 
Thanks very much...