Not from my understanding, however a corrupt video driver could have created a similar problem, but I would have expected it to show up a lot more often with other apps than Poser. Especially ones that use the video processing like games and photo-editing software. Khrys if you don't much about hardware, you are best to either have professional check out the type of RAM in your system and compatibility with your motherboard and other chips. If you are brave and willing to take the risk, you can pull your memory chip and write down all the info on the sticker of the chip and take that to your neighborhood hardware retailer to determine compatibility. Motherboards and memory chips are very particular these days and the generic BestBuy chips are often not compatible. Please take care and I accept no responsibility for the advice given here! (You get what you pay for!)