Out of 27 cw qsos three have had this problem. While typing the xmission will stop before the entire message goes out. Blip remains. Then aftrer a delay it restarts at about twice the speed set(cannot decrease the speed) when the hi speed stops I can continue to type and it will be normal speed. One time the screen rig disappeared. I reclicked the ICON to bring it back. Error message'a qsonet is already running' so the only way to bring the trans/receiver back up is to restart computer. By that time I have lost the qso. The other 24 qsos went with no problem. I assume this is a VISTA problem not a cq100 problem. Cpu is a new 64 bit VISTA . other wise cpu operatiion is similar to any cpu problems. Any suggestions will be appreciated w4ddd .