Im using acer timelinex 4820tg, i5-460m, 2gb ram, ati mobility radeon hd 5650. i use a dslr to shoot some 720p video, when i put in sony vegas pro, then i do simple transition (the default one when you overlap videos), the preview will lag like crazy, and i wont be able to see the effect. even though i put preview to the lowest settings possible, it still lags. is this sony vegas pro 10 prob? or isit cuz i only hv 2gb ram then got problem? last time i edit 720p video i remember only little lag, not lag until so serious.

thx in advance!

lol 2Gb Ram, upgrade to 4 la

i might be getting new laptop soon, so i dun feel like upgrading just yet. is it cause of the 2gb ram that causes the lag?

I think bcoz ur spec not good enough to run the program. Seems u only got 2GB of RAM n HD5650. If 2GB or RAM then i think only around 1.5GB useable (min 1.5GB useable) bcoz ur graphic will take "max" at 512MB of ur RAM for graphic.

hmm... ok but i used to be able to run it fairly smoothly with only little bit lag

Maybe u can upgrade ur RAM to 8GB for good experience. Its not impossible to change Graphic,but very hard to find for laptop.

hmm.. seems like the problem gone away already. thx for the help anyways