I can verify the same issue. If any application including altbinz pops up a balloon tip within the systray, it will cause Altbinz to lockup. Also, when it starts verifying and repairing, it will also lockup.
Issue is identical on another system as well. I have tried all available versions of Altbinz for an alleviation and all versions freeze when repairing files and/or a balloon tip pops up.
The only way to shut it down is by killing the process (WHICH i notice, seems to hang at 25% CPU everytime it has frozen). If left long enough, the comp(s) will reboot due to CPU overheat protection
Running latest Altbinz on
Win7 Ultimate x64 SP1
AMD FX4100 Bulldozer Quad Core @ 3.6Ghz
Win7 Ultimate SP1
AMD Phenom II Quad Core @ 3.2Ghz
ATI RadeonHD 6800