I recently purchased and installed 256MG of RAM on a Compaq Presario 5360. This computer is a couple of years old, and it was starting to move a little slow (it had 64MG of RAM before I installed 256 more), the kids weren’t able to get a lot of things to work, so the guy at Circuit City recommended I purchase some RAM manufactured by PNY Tech. I expected a huge difference, because I added a LOT of RAM! But my system resources are dangerously low – varies from 30% to 55%, but is usually in the 40s. I think it may even be slower than before. It’s too late to take the RAM back – I purchased it a couple of months ago (more than the 30-day policy Circuit City has), and I don’t have the package or the receipt. I don’t really know what to do. Support at PNY told me that this memory may not work in my computer, but didn’t seem to know for sure. They recommended disabling start-up items, but I’ve already done that. Any ideas?