Someone mentioned they thought that the N signal was an issue, so I tore apart my network and stepped it down to WEP (was WPA2 when I started) and mixed b/g only and now it works.
I recently replaced the router with a Linksys Ultra Extreme Range N router when my old Linksys G router stopped working. I didn't have a problem with my OS Tiger laptop, so I didn't think the newer BlackBerry would have an issue with the N.
But evidently it was a mixture of that and my security settings.
It's all fixed now.