Hi Greg,
I have been experiencing similar problems, although with a slight difference. (My Default Browser has been replaced with "yellow Pages")
This link explains more
Do I have a virus
Although I have tried sending service books from the Telstra Blackberry Website, this hasnt rectified the problem, and "Yellow Pages" still remains as the Default Browser, with no option to change it...
Gary has suggested calling Telstra and confirming that I still have the Internet Browsing Service (IBS)" codes on my account, but I am swamped at work atm, and probably wont get the chance to call Telstra until tomorrow...
Anyone with any info re this weird problem would be great...
Ok problem solved now... remove this post if you wish!