the application installer window of the htc sync not opening properly

[suhas.m]

i need to install my android application on phone.My phone is htc desire.I am using htc syc for connecting my system to the phone.I need to install the application on phone for testing.I have searched for a lot of methods and finally i chose one(by using sync).But the problem is i cannot see the application window,that is when i click on it(application installer button),it will open a blank window.I donot know why....is this an issue...can anybody help me....plzz.........