Video rendering problem!-in ULEAD VIDEO STUDIO

[nithinks]

I am using ulead video studio 7 for video editing purpose,The problem is that,whenever I perform rendering,(after editing video)It stops in between and the program shuts down(With a message; "This prog has performed illegal operation,and will be shutting down").I have properly checked video files which are error free.How can I eliminate this problem (I am facing this problem from last two months) .

[QwertyManiac]

wats ur OS and what backgrnd apps do u run ????
Plz say and i can hlp u better...