HP ze5375us sl not responding after 5 seconds

Hi all SL friends. I use my desktop and see its using lots of resourses most of the time but still can play the game. I was on vacation for one week and installed on my hp laptop, same processor as desktop intel 2.4 meghertz. Lap has ati radion IGP 345M and after i log into SL the screen starts to Rez and after about 5 to 7 seconds everything freezes and SL says not responding. I have lowered all settings and tried what i could in the game settings to help. My system resoures are at about 80% when the game is running. Is there something im missing. The video drivers are about 2004 from HP and i went to their site and they havent updated them. Thanks for any help you can offer.
I had 512 shared memory and upgraded to 768 and saw no difference.

Thanks
Mike

Mike, is your computer doesn't meet our System Requirements! Thus, unsupported and we can't guarantee it to work with Second Life. The "IGP 345M" is an incompatible graphics chipset. I'm sorry to be the bearer of bad news.