|Probably because the game or games are not fully compatible with Windows 7 if they are old game versions.|
Try running them in XP compatibility mode.
"can i cange my didicated graphics?"
If you mean can you change the graphics hardware, no you can't on that particular laptop.
If you mean can you increase the amount of dedicated graphics memory, no you can't do that either as the dedicated memory is built in to the graphics chip.
You may be able to increase the amount of shared memory in BIOS Setup, but i don't believe that is in any way related to the crashing issue.
What you really need to do is increase the amount of installed RAM in your laptop because 2 GB just isn't enough for Windows 7 when almost half of that is being used by the graphics hardware alone. That only leaves just over 1 GB for Windows, applications & games. That's nowhere near enough.
You need to increase the installed RAM from 2 GB to 4 GB (you can install more if your Windows is 64-bit).
message edited by phil22