Nero 7.5.9.0 Error Message

I attempted to recode to MPEG2 video files using Nero Startsmart 3.5.5.0. About half way through I got the following error message:" Instruction at 0x7c911e58" referenced memory at 0xffffff. The memory could not be read" Click OK to terminate the program. NeroVision.exe Application Error.
Is this a software problem w/ Nero 7.0 or is it a hardware problem w/ the computer’s ram memory? Anyone have a solution? :sad: