Hi there, been reading these forums for awhile now, learning about overclocking, unlocking pipes, etc, and had a few questions for the gfx card gurus Im by far not a rich man, and I pretty much have a choice between 8600gt 512mb 84$nz card(which i think is actually a 256mb card, and the rest shared system memory?) or a 8800gs card 185$nz(little iffy on the price there), which is made by gigabyte(which I no longer trust, any opinions on gigabyte cards?), which will bring me to another question later which of these to is best bang for buck?, and has more overclocking/unlocking potential? and the main question I wanted to ask, I have an gigabyte 8400gs(yea I know, not for gaming) that worked well for 2 months, then all of a sudden stopped one day, then the next day I rebooted, and it worked again, and a couple days later stoped, and has been repeating this for the last 3 months the motherboard I have is a M2A-VM Asus board 1705 rev bios, with onboard x1250 gfx card that uses system memory, and the 8400gs, is a gigabyte 256mb with turbocache I had a ill formed theory that the cards might cause some problems with each other in some way? If not, what are the possible reasons some days it works, and some days it just doesnt? Odditys I've noticed about this 8400gs, is..I have a heater, pointed at my feet, and it heats my computer a bit if I turn it on(not enough to do any dmg), but if I leave the heater on awhile, and then reboot the computer...the card works!, as I was typing this, I confirmed it,(heaters on now) by rebooting my computer..a possible component is failing on the card, and the heat somehow makes it work? any theorys appreciated!