I have a laptop running an Intel GMA series 4 chip… It never overheats, thanks to a cooler, but it is far from capable. Dragon Age is unplayable during heated battles, and stutters quite a bit even normally. KB isn't bad, just a bit of stutter during exploration. None during battles.
I could do with more RAM, but that won't affect the weak chip. It's not a gaming chip, for certain; many games kick up errors on install as they don't support it.
I'm not wrong about BG2 messing up. After completing BG1, I copied my save over, and went to load BG2. The autorun screen (the one that loads when you insert the disc) popped up, only offering an install option. Clicking install crashed it. I had to manually uninstall, then reinstall BG2. Even uninstalling Tutu didn't work.
It worked before; I tested it before installing tutu, checking my no CD crack. Then later, as said, after installing tutu, making sure it still worked. It did. I ignored it for a couple weeks, until I had beaten BG, then it failed. Repeatedly.
I'm not sure what happened, unless something got corrupted randomly during that time. Not sure how that would have happened either.