Windows 7, lotus notes 8.5.2, and doc link problem

Hello,
Question, we are in the middle of converting from lotus notes to Google apps and starting to convert windows XP users to Windows 7.
We are having a problem with users that are converted from windows XP to windows 7 the users also get lotus notes client 8.5.2. FP2. And they are also Google apps users on Chrome.
The problem is when they get a (lotus notes) document link in Google apps, the user clicks on the link in Google apps, Google apps launches a dialog (External Protocol Request), users then click button "Launch Application" – a blank tab then opens on Google apps but the user is not taken to lotus or to the document in question.
Any help or direction will be appreciated.
Thanks,
