When I watch a flash video on my MacBook it causes Firefox (and Safari) to crash probably 70% of the time. I noticed today that it started right when I upgraded my hard drive to a 320gb Samsung model in January. What made me notice that is because I am taking the MacBook to get its case fixed tomorrow so I put the original hard drive back in. Ever since the original hard drive has been reinserted flash videos have played with no problems. Can a hard drive cause a problem like this? btw I have 4gb of memory so I should have plenty of resources.