Samsung Netbook N145-JP03AU 64bit OS - No Graphics Drivers available?  

I have this netbook which came with Windows 7 Starter Edition 32bit (ikr), even though it was a 64bit compatible device. I've just upgraded it to Windows 7 Home Premium 64bit (well I did put Windown 8 on it but it ran way too slowly so I downgraded, in a way) but the problem is I can't find any 64bit drivers for the in-built graphics card. I've tried installing in compatibility mode, doing Update Drivers and searching and browsing for them as well as using Samsung's own SW Update (and everything else I can think of). I've contacted Samsung to find out whether they have a driver I can use but I wondered, in the meantime, if there's anything else I can use/do so I can actually use the computer. I keep getting Open GL errors and all sorts of things because there's just no driver installed. Any help on this would be appreciated. TIA

You rule! I tried the Intel site and couldn't find 64bit drivers but these worked a treat. Thank you so much.