I have the same problem man.Some basic information about my notebook:
Windows 7 Home Premium 64 bits
Processor : Intel Core i3 M330
RAM: 4GB DDR3
Video: Intel Graphics Media Accelerator HD -GMA HD
When i try to play DotA on Warcraft Frozen Throne , the game freezes for 3-4 seconds every 10minutes...Always happens that. I think that can be the multicore processor or the GMA HD. I updated my drivers
and disable many features on GMA HD but still the same problem. There is a interesting link that i found searching on Google : Dual Core Gaming Fix Guide Dual Core Gaming Fix Guide - [H]ard|Forum
. Try Fix #4 - Set the Affinity Manually. For me not solve at all, but got a little better. For newer games it not happens.
If u find something for our problem, please, stay in touch and send me an email or reply this topic.