avast pda for HP 6515

Hello.
I use avast for pda. The only page that shown is just the copyright page, with engine version and virus database version.
HP 6515 has 240x240 screen resolution.
I dont know if the avast pda goes that way or there are some button at the bottom page.
I tried to install myditot to change screen resolution, but the result is no good.
I even have to hard reset my pda.
Please some one can explain.