Then you dont get the powerevent 537 in your tvserver log now do you ?I get the same problem with a Technotrend s2 3200, so i wouldnt say its all to do with the firewire patch.
if you want me to help you .. post your logfiles..from tvserver.. but do so when you are experiencing the problem BEFORE you restart the service or reboot.. (logs are cleared)
zip them and attach them here.. i will have a look for you.. as will others probably..