For the past few weeks I have not been able to open a website on my Bb Curve 8520 as I get the 500 error. I can open every other website as usual...no other issues. And no recent downloads on the Bb.
But all of a sudden I cannot get to Ravelry.com which is a discussion forum for knitters/crocheters/fibert artists.
I can't get there through my bookmark, using the browser by typing in the URL, etc.
Prior to this time, I've been able to open Ravelry without difficulty.
Try Bolt Browser before you check with the IT group. You wont be disappointed with it in general...i use it instead of my Blackberry Browser and it's insanely amazing!