And you've put up with it crashing every day for 7 months??
Daaaamn!
Anyway, i wouldnt say it was caused by a "bug" in the OS - could be in relation to something you have installed, could just be a dodgy machine.
I would uninstall any software you dont use on the machine, run a defrag, disk clean up, etc.....if it still happens, i would maybe think about a re-install of the OS.
If that doesnt do the trick, it's more likely to be a hardware problem so, you'd probably be best to get it checked out.....