Hello,
Still no chance with mesa 7.7-4 from unstable ? Are you using latest X packages and 2.6.32 kernel ?
after your suggestion, I did: apt-get install libglu1-mesa libgl1-mesa-dri -t unstableand rebooted. Now blender does not crash when I slide a cursor. The crash problem seems to be solved !
(I am using xserver-xorg version: 1:7.5+3, xserver-xorg-video-intel version 2:2.9.1-2 and linux-image-2.6.32-trunk-686)
Thank you.