The newest alpha code for fldigi (fldigi-3.13BT) contains a critical bug fix for the PSKxxxR modes. The effect was that 1 out of 1000 blocks was not properly decoded and the block was resent by the server ad infinitum... It has been very difficult to find this bug, as it was depending on the input text pattern, it has taken me some 2 weeks and putting several Megabytes of text through the system to detect it. John, VK2ETA has squashed the bug. As this is a systematic error you are advised to switch to the new code, so the errors do not occur anymore. The code is at http://hermes.esrac.ele.tue.nl/pskmail/fldigi 73, Rein PA0R -- http://pa0r.blogspirit.com