Stutter/freezing problem

[trilbynorton]

Hello all,

I bought Amnesia through Steam a few days ago, and it works perfectly on high settings, except for this strange stutter or freeze that occurs occasionally. I've used Fraps, and it's not a framerate issue (the game runs on a sold 30-40 FPS, even during the stutter). Instead, the game locks up for about a second and then resumes. There doesn't appear to be any definite cause; it happens when moving, when looking, sometimes when picking up items or turning on the lantern. It's not a massive problem, but it does break the immersion in a game that is all about immersion.

Here are my system specs in case they're relevant:

Acer 5732Z laptop
Windows 7
2.2GHz Intel Pentium dual core processor
4GB RAM
ATI Mobility Radeon HD 4570

I've tried a lot of the things mentioned on this forum, including updating my graphics driver, dropping the settings to low, turning off SSAO, and none of them stop this stutter. Like I said, it's not a huge problem, but any help in eliminating it would be appreciated.

Trilby