amazingly i notice that when i start to record a program with Progdvb problem happen any idea to solve it?

many thanks for your reply
i put a midum size fan above the card which blow over the chipset directly and about LNBs there is two LNB which connect to one switch

hi to all !
i have a tevii s470 dvbs/s2 i used it well for about one year but a few days ago suddenly i faced with no signal problem i use progdvb everything apparently is O.K no conflict or software failure but there is no signal at all i check other equipment all is o.k i ask manufacturer they ...