Now all working, but I`m don`t know why :(
In sending IGC file with error, G-Plan wrote string as:

B0228264831,347N12301,462WV0003600001005338000
but now it writes as:

B1914054838865N12325083WV0002000001005264000

I did nothing  :-\

I just replaced the comma by dot in decimal point section of the regional settings. Maybe it affected?

Yes, nothing displayed and in log this:
18:50:44.8 _Backstage_IsOpenChanged: True
18:50:47.1 _Backstage_IsOpenChanged: False
18:50:54.7 OpenTrail: System.FormatException: Input string was not in a correct format.
   at System.Number.ParseSingle(String value, NumberStyles options, NumberFormatInfo numfmt)
   at Plan_G3.Model.UserAircraft.OpenTrail(String fileName, List`1& altList, List`1& terrainList) in C:\Users\skyhawk\Documents\Visual Studio 2010\Projects\Plan-G3\Plan-G3\Model\UserAircraft.cs:line 265

Hi!
Can't load trail file.
IGC and Log files in attachment.

Any ideas?