Did you get it sorted mate? I had the same blank screen using my bold but fixed it. You need to change your browser. On the current browser page ... Click BB button > Options > Browser Configuration > Scroll to Browser Identification and change from BlackBerry to firefox.>save Options.Isnt working on my Blackberry was fine before change I'm just getting a blank screen now
Shows this style forum as on your PC. The problem was the BB browser shows its a mobile and so loads the mobile site which (as you are painfully aware) won't load on this OS version.
Hope this helps.
Regards, David