Working on air, I use UR5EQF_Log3 as the main logger. Repeatedly I noticed behind it such "sin" – if to rely on automatic sending QSO for confirmation servers (LoTW, eQSL.cc), it not always copes with it "for all 100%"... something is lost, and to find then these communications on the server it appears it is impossible. Therefore QSO can be sent, sent, sent on the server through a logger – and to wait, wait, wait for the answer... but if to the QSO "did not reach" server – that after all and answers aren't!
Besides, after some changes on LoTW to send QSO automatically to server from logger installed on Windows XP it became simply impossible. And I have XP – the one system on the small laptop (even the netbook) Asus Eee PC 901. And it is absolutely senseless to transfer it to Windows 7 – due to incompatible hardware drivers, and limited resources pool.